Supply of tubular air heater steel tubes and plates for matimba power station unit 4 refurbishment

Eskom Holdings SOC Ltd invites tenders for the supply of materials for refurbishing tubular air heaters at Unit 4, Phase 1. The procurement covers steel tubes, steel plates, and ceramic sleeves required for heat exchanger/condenser/air heater applications under specified operating conditions. All tenderers must complete and submit the full set of returnable documents including authorisation, acknowledgement, particulars, integrity declaration, CPA requirements, local content declarations, SBD forms, and the NEC3 Supply Contract with pricing.

Closing date and time: 28 October 2026 at 10:00

Clarification query deadline: 5 working days before tender submission deadline (approximately 21 October 2026)

Non-compulsory clarification meeting: 15 October 2026 at 10:00-12:00

Venue: Microsoft Teams (link: https://teams.microsoft.com/meet/343537978866543?p=ife4IIHDKCSG7anV1f)

Attendance confirmation required: bidders must confirm intention to attend with Eskom Representative, providing names, positions and contact details of attendees

Note: if stipulated as mandatory, non-attendance disqualifies; currently listed as non-compulsory

Tender validity period: 180 days from closing date

Eskom Representative:

• Name: Azwifaneli Fanie Thagwana
• Telephone: 014 763 8690
• Email: [email protected]

Fraud and corruption reporting:

• Hotline: 0800 11 2722
• Email: [email protected]

Submission address: electronic via Eskom E-tendering portal only

Standard conditions of tender: available at www.eskom.co.za

Evaluation stages and scoring:

• Stage 1: Basic compliance (eligibility, complete submission, mandatory commercial returnables)
• Stage 2: Functionality/technical qualitative criteria — minimum threshold 70/100; bidders below this are disqualified
• Stage 3: Price and preference scoring (80/20 or 90/10 system determined by lowest acceptable tender)

Functionality criteria (100% weight, scored out of 100):

• Criterion 1 (30%): Proof of experience in manufacture, supply and delivery of tubes to EN 10216-2 P235G, EN 10297-1 E235+AR, EN 10216-2 P265GH, ASTM A106 grade B, EN 10216-2 16Mo3, or EN 10296-1 E235+AR
• 3+ purchase orders with delivery notes/completion certificates: 5 points
• 2 purchase orders with delivery notes/completion certificates: 4 points
• 1 purchase order with delivery note/completion certificate: 2 points
• None: 0 points
• Site visits will verify all submitted evidence
• Criterion 2 (30%): Proof of experience in supply and delivery of steel plates to EN 10025-2 S355, ASTM A572 Grade 50, Q355, BS 4360 grade 50, or EN 10025 grade steel standard
• Same scoring scale as Criterion 1 (5/4/2/0 points)
• Site visits will verify all submitted evidence
• Criterion 3 (40%):
• Letter of intent from ceramic sleeve manufacturer/supplier confirming supply commitment (required document)
• Sample material certificate for any tube standard from Criterion 1 (required document)
• Sample material certificate for any plate standard from Criterion 2 (required document)
• All 3 documents: 5 points
• 2 documents: 4 points
• 1 document: 2 points
• None: 0 points

Quality requirements (separate evaluation, not part of functionality score):

• Section A (ISO 9001): 4 points — valid ISO 9001:2015 certificate, accredited body, relevant scope, valid expiry
• Section B (QMS evidence): 2 points — organisation chart/responsibility matrix; supplier assessment and control procedure with evidence
• Section C (Contract Quality Plan): 1 point — provisional CQP for project with QA deliverables, resource allocation, roles and responsibilities
• Section D (Quality Control Plan): 1 point — QCP/ITP for tubular air heater steel tubes and plates covering material grade, dimensions, mechanical properties, traceability, inspection, testing, preservation, packaging, delivery
• Section E (User defined): 1 point — Form A completed and signed

Environmental requirements (separate evaluation, minimum 90%):

• Environmental policy (10%): signed policy committing to environmental compliance and duty of care
• Aspects and Impacts Register (70%): identifies, assesses and provides controls/mitigations for scope of work impacts
• Method Statement (20%): demonstrates adequate understanding of project scope and methodology

Price evaluation:

• Inclusive of VAT, corrected for arithmetic errors, excluding contingencies
• Unconditional discounts considered; conditional discounts not considered for scoring but implemented at payment
• Scored out of 80 or 90 points (system dependent)

Specific goals (PPPFA):

• Scored out of 20 or 10 points
• Failure to submit evidence: 0 points, not disqualified

Objective criteria: Eskom may award to other than highest scorer if justified

Contractual requirements (assessed post-evaluation, pre-award):

• CSD registration
• Financial viability (audited financial statements may be requested)
• OHS compliance
• Quality compliance
• Environmental compliance

Scope: Refurbish Tubular Air Heaters Phase 1 — Supply of Material for First Unit 4

Materials required:

Tubes for heat exchanger/condenser/air heater:

• Standards: EN 10216-2 P235G, EN 10297-1 E235+AR, EN 10216-2 P265GH, ASTM A106 grade B, EN 10216-2 16Mo3, or EN 10296-1 E235+AR
• Tube length: 12.5 metres
• Operating pressure: 330 to 610 Pascals
• Operating temperature: 300 to 350 degrees Celsius

Steel plates (25mm thickness):

• Standards: EN 10025-2 S355, ASTM A572 Grade 50, or BS 4360 grade 50
• Plate thickness: 25mm
• Operating pressure: 330 to 610 Pascals
• Operating temperature: 300 to 350 degrees Celsius

Steel plates (50mm thickness):

• Standards: EN 10025-2 S355, ASTM A572 Grade 50, or BS 4360 grade 50
• Plate thickness: 50mm
• Operating pressure: 330 to 610 Pascals
• Operating temperature: 300 to 350 degrees Celsius

Ceramic sleeves: letter of intent from manufacturer/supplier required confirming supply commitment

Material certificates: samples required for tube and plate standards

Contract form: NEC3 Supply Contract (SC)

Method Statement evaluation (part of environmental requirements, 20% weight):

Scoring:

• Fully demonstrates adequate understanding of project scope and methodology, indicates scope appropriately catered for (85-100%): 20 points
• Partially demonstrates scope of work to be executed (35-50%): 10 points
• Not submitted or not demonstrating scope of work: 0 points

Total environmental score: 100 points with minimum threshold 90% required

Industry involvement and expertise requirements (100% of functionality score):

Tube supply experience (30% weight):

• Materials: EN 10216-2 P235G, EN 10297-1 E235+AR, EN 10216-2 P265GH, ASTM A106 grade B, EN 10216-2 16Mo3, EN 10296-1 E235+AR
• Evidence: purchase orders with delivery notes or completion certificates
• Cover letter required with each purchase order: company details, contact person, telephone, email
• Site visits conducted to verify all information
• Scoring: 3+ orders = 5 points; 2 orders = 4 points; 1 order = 2 points; none = 0

Plate supply experience (30% weight):

• Materials: EN 10025-2 S355, ASTM A572 Grade 50, Q355, BS 4360 grade 50, EN 10025 grade steel
• Same evidence and verification requirements as tube criterion
• Same scoring scale

Documentation (40% weight):

• Letter of intent from ceramic sleeve manufacturer/supplier confirming supply commitment
• Sample material certificate for any tube standard
• Sample material certificate for any plate standard
• Scoring: all 3 documents = 5 points; 2 documents = 4 points; 1 document = 2 points; none = 0

Quality Management System requirements:

Section A — ISO 9001 certification (4 points):

• Valid ISO 9001:2015 certificate from accredited certification body
• Certificate must be relevant to product/service scope
• International accreditation of certification authority required
• Validity period checked

Section B — QMS in operation (2 points):

• Documented organisation chart and responsibility matrix (ISO 9001:2015 Clause 5.3)
• Documented procedure for control of externally provided processes, products and services including evaluation, selection, monitoring and re-evaluation criteria (Clause 8.4)
• Supporting evidence of implementation required

Section C — Contract Quality Plan (1 point):

• Provisional CQP specific to scope
• Must demonstrate consistency of design and philosophies across units
• Clear identification of roles, responsibilities and expectations
• Correct allocation of experienced resources throughout project period

Section D — Quality Control Plan (1 point):

• QCP/Checklist/ITP for supply and delivery of tubular air heater steel tubes and plates
• Must cover: material grade, dimensions, mechanical properties, traceability, inspection, testing, preservation, packaging, delivery
• Roles, responsibilities and supporting quality records identified

Section E — Additional requirements (1 point):

• Form A completed and signed
• Customer-specific requirements and other standards listed

Pricing format: NEC3 Supply Contract with completed pricing schedule

Tax compliance for foreign suppliers:

• Foreign suppliers with South African footprint but no CSD registration and no SARS PIN: certified tax clearance certificate required
• Foreign suppliers with no South African footprint: complete SBD1 only, no tax proof required

Price evaluation basis:

• Inclusive of VAT
• Corrected for arithmetic errors
• Excluding contingencies
• Adjusted for acceptable variations, deviations, alternative tenders
• Net Present Value comparison based on tendered programme, price adjustment factors, exchange rate fluctuations where applicable
• Unconditional discounts considered for evaluation; conditional discounts implemented at payment only

Payment terms:

• Contracts below R50 million (including VAT): 30 days from receipt of undisputed invoice
• Contracts above R50 million (including VAT): 60 days from receipt of undisputed invoice

Financial capacity assessment:

• Due diligence may be conducted via financial analysis
• Latest 2 years comparative financial statements required if requested:
• Companies: signed independent auditors' report, directors' report, statement of financial position, statement of comprehensive income, statement of changes in equity, statement of cash flows, notes
• Close corporations: signed accounting officers' report, members' report, same financial statements as companies
• Public interest score required for non-audited South African entities
• ITA34C for current and previous years for non-audited South African entities
• Subsidiaries without own financial statements: holding company guarantee letter required, allowing Eskom to use holding company financials and guaranteeing subsidiary liabilities

Pricing format: completed NEC3 Supply Contract pricing schedule

Eskom reserves right to negotiate with preferred bidders if prices not market-related

Subcontracting with subsidiaries discouraged; must be declared if applicable

Mandatory registration and status:

• CSD registration: mandatory for all tenderers
• Tax clearance: SARS e-filing PIN or CSD profile/number for local tenderers; certified tax clearance certificate for foreign tenderers with South African footprint but no CSD registration; foreign suppliers with no South African footprint complete SBD1 but no tax proof required

B-bbee:

• Proof of B-BBEE status level of contributor required for preference points
• Acceptable: B-BBEE status level certificate from authorised body, sworn affidavit as per B-BBEE Codes of Good Practice, or other prescribed requirement under Broad-Based Black Economic Empowerment Act

Local content:

• Designated sector: fabricated structural steel — 100% local production and content threshold
• SBD 6.2 and supporting annexures (G1-G4) mandatory for designated materials
• Local procurement content to be stipulated for works

CIDB: not explicitly mentioned for this supply contract

Eligibility restrictions:

• Not on international sanctions list nationality
• Not restricted by National Treasury
• Not on Tender Defaulters list
• Not restricted by Eskom (company or directors)
• No conflict of interest
• Not subcontracting 100% of scope

OHS requirements (contractual, assessed post-evaluation):

• Annexure B acknowledgement of Eskom OHS legal requirements
• Health and safety plan addressing project OHS risks
• Detailed OHS costing (broken down, not lump sum)
• Valid letter of good standing (COIDA or equivalent) — South African tenderers only
• OHS policy signed by CEO (compliant with OHS Act Section 7)
• OHS competency: CVs and qualifications/certificates for required competencies
• Submission deadline: tender closing date; 7 working days to respond to outstanding document requests

Quality requirements (contractual, assessed post-evaluation):

• ISO 9001:2015 certification
• QMS documentation
• Contract Quality Plan and Quality Control Plan

Environmental requirements (contractual, assessed post-evaluation):

• Environmental policy
• Aspects and Impacts Register
• Method statement

OHS contractual requirements (assessed after functionality, pre-award):

Mandatory submissions at tender closing:

• Annexure B: acknowledgement of Eskom OHS legal and other requirements (signed)
• Health and safety plan addressing project/scope OHS risks, aligned with health and safety specifications
• Detailed OHS costing (itemised, not lump sum) based on overall scope and risk assessment
• Valid letter of good standing (COIDA or equivalent) — original certificate or proof of application from Compensation Fund or licensed insurer; South African tenderers only
• OHS policy signed by CEO, compliant with OHS Act Section 7
• OHS competency documentation: CVs and qualifications/certificates for required personnel (two competency submissions required)

Evaluation process:

• OHS evaluates suppliers who have passed functionality and mandatory criteria
• One request for outstanding documents via buyer
• 7 working days to respond
• Failure to submit outstanding documents renders bid non-responsive
• Evaluation report submitted to procurement

Contract form: NEC3 Supply Contract (SC)

Eligibility exclusions:

• Nationals or entities constituted under sanctions-listed countries
• Multiple tender submissions (except e-tendering system limits)
• JVs without joint and several liability clause
• Conflict of interest (common controlling partners, information access, influence over decisions)
• Tenders signed by unauthorised persons
• National Treasury restricted entities
• Tender Defaulters list entities
• Eskom-restricted entities or directors
• 100% scope subcontracting

Financial sustainability:

• Holding company guarantee letter required for subsidiaries without standalone financials
• Eskom may conduct due diligence and request audited financial statements

Payment terms:

• Below R50 million: 30 days
• Above R50 million: 60 days
• Both from receipt of undisputed invoices

Eskom reserves right to post-tender negotiate with preferred bidders

Subsidiary subcontracting must be declared; discouraged as potential fronting

Technical functionality (100% weight, minimum 70% threshold):

• Tube supply experience (30%): 3+ proven orders with delivery proof = 5 points; 2 orders = 4 points; 1 order = 2 points; none = 0
• Plate supply experience (30%): same scoring as tube criterion
• Documentation completeness (40%): ceramic sleeve letter of intent + material certificates for tubes and plates; all 3 = 5 points, 2 = 4 points, 1 = 2 points, none = 0

Quality evaluation (separate, 9 points total):

• ISO 9001:2015 certification validity, scope, accreditation (4 points)
• QMS operational evidence: organisation chart and supplier control procedure (2 points)
• Draft Contract Quality Plan with resource allocation (1 point)
• Quality Control Plan/ITP for tubes and plates covering full material control chain (1 point)
• Form A completed and signed (1 point)

Environmental evaluation (separate, minimum 90%):

• Environmental policy with compliance and duty of care commitments (10%)
• Aspects and Impacts Register aligned with scope (70%)
• Method Statement demonstrating project understanding (20%)

Price and preference:

• Price scored out of 80 or 90 points
• Specific goals (B-BBEE/local content) scored out of 20 or 10 points
• 80/20 or 90/10 system determined by lowest acceptable tender value
• Objective criteria may override highest score

Quality assessment category

• Category 1 applies (pre-contract award quality requirements per clause 3.5 of Eskom specification 240-105658000)
• Categories 2, 3 and 4: not applicable
• Main supplier and sub-supplier capability and capacity assessment: not indicated as applicable
• Site assessment applicability: to be confirmed by tenderer

Eskom quality representative

• Name: Tshepo Matuludi
• Role: Senior Advisor Quality Control
• Sign-off date: 1 July 2026

Scope: Refurbishment of tubular air heaters — Phase 1, supply of material for First Unit 4

Quality requirements applicable (Eskom specification 240-105658000 and ISO 9001)

• Pre-contract award quality requirements: applicable
• Category assessment: Category 1 (refer clause 3.5 of 240-105658000)
• Site assessment applicability: to be indicated by tenderer

Post-contract award conditions (Eskom)

• Contract execution monitoring: applicable
• Supplier quality performance monitoring: applicable
• Eskom rights of access: applicable
• Eskom rights to information: applicable
• Preservation requirements: applicable
• Quality audits: applicable
• Management of nonconformities identified by Eskom: applicable
• Special processes: applicable

ISO 9001 clauses applicable

• Clause 4: Context of the Organisation
• Clause 5: Leadership
• Clause 6: Planning
• Clause 7: Support
• Clause 8: Operation
• Clause 9: Performance Evaluation
• Clause 10: Improvement

ISO 9001 quality principles applicable

• Principle 1: Customer focus
• Principle 2: Leadership
• Principle 3: Engagement of people
• Principle 4: Process approach
• Principle 5: Improvement
• Principle 6: Evidence-based decision making
• Principle 7: Relationship management

ISO 9001 clause requirements

• Context of the Organisation
• Leadership
• Planning
• Support
• Operation
• Performance Evaluation
• Improvement

ISO 9001 quality principles

• Customer focus
• Leadership
• Engagement of people
• Process approach
• Improvement
• Evidence-based decision making
• Relationship management

Eskom specification 240-105658000

• Authorisation date: January 2022
• Review date: January 2027

Post-contract quality obligations

• Contract execution monitoring: required
• Supplier quality performance monitoring: required
• Eskom rights of access to supplier premises: required
• Eskom rights to information: required
• Preservation of product: required
• Quality audits: required
• Management of nonconformities and nonconforming outputs identified by Eskom: required
• Special processes control: required

ISO 9001 alignment

• All seven ISO 9001 quality principles applicable
• All ten ISO 9001 standard clauses applicable

Sign-off required

• Eskom quality representative: Tshepo Matuludi, Senior Advisor Quality Control, signed 1 July 2026
• Tenderer quality representative: to be named, signed and dated by bidder

Mandatory returnable form

• Form A (Tender & Contract Quality Requirements): to be completed, signed and returned by the tenderer to acknowledge and accept Eskom Supplier Quality Requirements per specification 240-105658000 and ISO 9001 Standard

Quality management system

• ISO 9001 compliance required
• All listed ISO 9001 clauses and principles marked applicable (X)

Assessment category

• Category 1 supplier assessment applies (pre-contract award)
• No capability and capacity assessment indicated for main or sub-suppliers

SHE rules acknowledgement form — Annexure B

Mandatory documents the bidder must obtain, understand and acknowledge:

• Eskom Safety, Health, Environmental and Quality Policy (32-727)
• Eskom Life Saving Rules (Directive 240-62196227)
• Eskom Environmental, Occupational Health and Safety Incident Management Procedure (32-95)
• Eskom Vehicle and Driver Safety Management (32-93)
• Eskom Vehicle Specification (32-345)
• Eskom Contractor Health and Safety Requirements Standards (32-136)
• Eskom Waste Management Standard (32-245)
• Employees' Right of Refusal to Work in Unsafe Situations (240-43848327)

Contractor and supplier management requirements:

• Demonstrate selection process and criteria for appointing subcontractors
• Notify Eskom before any subcontractor commences work
• Ensure subcontractors have adequate resources and competencies
• Remain accountable for all subcontractor legal and Eskom SHE compliance
• Conduct audits and assessments of subcontractor SHE compliance during work execution
• Document grounds for termination of any subcontractor
• All subcontractor non-conformances channelled through main supplier performance and penalty processes
• Eskom may verify credentials and demand references including from previous Eskom work

Financial and operational conditions:

• Work stoppages for SHE reasons: no financial compensation claimable against Eskom
• Financial penalties apply to main supplier for any SHE non-conformance by main supplier or any subcontractor tier
• All personnel must complete Eskom induction and company-specific induction before work begins

Scope: Refurbishment of tubular air heaters — Phase 1, supply of material for First Unit 4

Client: Eskom

Location: Limpopo province

Category: Supplies — General

SHE compliance — mandatory pre-contract acknowledgement required:

• Eskom Safety, Health, Environmental and Quality Policy (32-727)
• Eskom Life Saving Rules (Directive 240-62196227)
• Eskom Environmental, Occupational Health and Safety Incident Management Procedure (32-95)
• Eskom Vehicle and Driver Safety Management (32-93)
• Eskom Vehicle Specification (32-345)
• Eskom Contractor Health and Safety Requirements Standards (32-136)
• Eskom Waste Management Standard (32-245)
• Employees' Right of Refusal to Work in Unsafe Situations (240-43848327)

Contractor management obligations:

• Main supplier must demonstrate selection criteria and process for appointing subcontractors
• Prior notification to Eskom required before subcontractor appointment
• Subcontractors must possess adequate resources and competencies
• Main supplier accountable for subcontractor SHE compliance
• Audits and assessments of subcontractors mandatory during contract execution
• Grounds for subcontractor termination must be documented
• All subcontractor non-conformances dealt with through main supplier's performance and penalty processes

Financial consequences:

• No compensation for work stoppages due to SHE issues
• Financial penalties for SHE non-conformance by main supplier or any tier of subcontractor
• Eskom reserves right to verify subcontractor credentials and request references

Induction:

• All employees and contractors must undergo Eskom induction and company-specific induction

The tender is for the refurbishment of tubular air heaters, specifically focusing on the supply of material for the first unit (Unit 4).

Returnable Documents:

• Annex C: Local Content Declaration - Summary Schedule
• Annex D: Imported Content Declaration - Supporting Schedule to Annex C
• Annex E: Local Content Declaration - Supporting Schedule to Annex C

Bidders must complete and submit all three annexures detailing local and imported content.

The evaluation of bids will be based on compliance with SATS 1286.2011 for local and imported content declarations. No other specific evaluation criteria or scoring mechanisms are detailed in the provided text.

The tender involves the refurbishment of tubular air heaters, specifically the supply of material for the first unit (Unit 4). The document focuses on local content declarations related to this supply.

Local Content Declaration:

• Bidders must comply with SATS 1286.2011.
• Annex C requires a summary of local content, including tender price, exempted imported content, local value, and average local content percentage.
• Annex D requires a declaration of imported content, detailing exempted and directly imported items, including foreign currency values, exchange rates, and local costs.
• Annex E requires a declaration of local products and services, including purchased goods, services, manpower costs, factory overheads, and administration overheads.

The document outlines the scope of work for manufacturing, procuring and supplying tube sheets, seamless tubes and ceramic wear sleeves for the Tubular Air Heaters at Matimba Power Station Unit 4. It specifies quantities, materials, processing, transport, preservation and quality requirements. The work supports the Unit 4 planned outage (IR) projected for October/November 2026, with a three-month lead time for procurement.

Scope: Manufacturing, procurement and supply of tubes, plates and ceramic wear sleeves for Tubular Air Heater (TAH) refurbishment at Matimba Power Station Unit 4.

Quantities and specifications:

• 20,000 seamless tubes, 12.5 m length, OD 48.3 mm, ID 42.5 mm, material EN 10216-2 P235GH.
• Tubes annealed 300 mm at both ends, weldment cleaned off.
• 2 plates, 18.5 m × 2.3 m × 25 mm, material EN10025 S355.
• 2 plates, 18.5 m × 2.3 m × 50 mm, material EN10025 S355.
• 2 × 8,856 ceramic wear sleeves (internal, approx. 200 mm length); side flare and clearance to be determined; detailed manufacturing drawing required.
• Wear coating on plates: Chesterton ARC S7 AR composite coating; total dry film thickness to be provided before work.

Transport and preservation:

• Deliver tubes and plates to Matimba Power Station, Lephalale.
• Advise on storage conditions (temperature) and provide preservation method.
• Clearly mark weight for off-loading.

Quality requirements:

• Develop separate manufacturing Quality Control Procedures (QCPs) for tubes and plates; submit to Eskom for review and approval, including columns for Eskom Engineering and Quality intervention points.
• Provide all manufacturing documentation: material certificates, drawings, etc.

Applicable standards: ISO 9001; Occupational Health and Safety Act; Eskom procedures 32-95, 32-421, 32-136, 32-727.

Quality management requirements:

• Develop separate Quality Control Procedures (QCPs) for tube manufacturing and plate manufacturing; submit to Eskom Matimba for review and approval, including columns for Eskom Engineering and Quality intervention points.
• Supply all manufacturing documentation: material certificates, drawings, etc.
• Transport tubes and plates to Matimba Power Station, Lephalale.
• Advise on storage conditions (temperature) and compile a preservation method.
• Mark weight clearly for off-loading.

Applicable quality standard: ISO 9001.

Health and safety compliance:

• Occupational Health and Safety Act (Act 85 of 1993) with applicable standards and regulations.
• Eskom OHS Incident Management Procedure (32-95 Rev 9).
• Eskom Life Saving Rules (32-421).
• Eskom Contractor Health and Safety Requirements (32-136).
• Eskom Safety, Health, Environmental and Quality (SHEQ) Policy (32-727).
• Informative: Best Practice Guidelines (relevant and applicable).

Procurement of materials for Phase 1 refurbishment of Tubular Air Heaters at Matimba Power Station, Limpopo. Supply covers first unit outage with delivery required before end October 2026. Contract uses NEC3 Supply Contract (SC3) April 2013 edition with Options X2 (Changes in law), X7 (Delay damages), and Z (Additional conditions).

Contract start: 1 July 2026

Delivery date: 30 October 2026 (for all material ordered)

Programme submission: first programme within 2 weeks of Contract Date

Revised programmes: at intervals no longer than 2 weeks

Period for reply: 5 working days

Defects date: 52 weeks after Delivery

Defect correction period: 2 weeks

Defects access period: 7 days

Assessment interval: upon full delivery and acceptance of each item

Closing date for tender: 28 October 2026 at 10:00 (from tender record)

Purchaser: Eskom Holdings SOC Ltd (Reg No. 2002/015527/30)

Registered office: Megawatt Park, Maxwell Drive, Sandton, Johannesburg, 2199

Supply Manager: to be confirmed upon contract award

Invoice submission: [email protected] (PDF format, emailed directly from supplier system)

FSS Contact Centre for payment queries: 011 800 5060 or [email protected]

Project Manager: copied on invoice submissions (name not stated)

Returnable forms required:

• Form of Offer and Acceptance (C1.1): signed offer to perform all Supplier obligations for an amount determined by the Contract Data.
• Schedule of Deviations: records any agreed deviations from tender documents; must be attached to the Form of Offer and Acceptance.
• Contract Data Part 2: completed by the Supplier with pricing and programme data.
• Bonds and guarantees as applicable: Parent Company Guarantee (Option X4), Performance Bond (Option X13), or Advanced Payment Bond (Option X14) — pro forma templates provided in C1.3.

Submission method: not explicitly stated in the extracted document; the NEC3 SC3 contract pack implies submission in response to Eskom's solicitation.

Disqualification risks:

• Failure to submit required securities, bonds, guarantees, proof of insurance and other documentation within two weeks of receiving the completed agreement.
• Any deviation not recorded in the Schedule of Deviations is invalid.
• Failure to fulfil obligations upon contract coming into effect constitutes repudiation.

Evaluation approach: NEC3 Supply Contract (SC3) priced contract. The total of the Prices is assessed against the Price Schedule (Part C2).

Pricing basis:

• Lump sum items: fixed amounts not adjusted for quantity changes.
• Rate-based items: rate multiplied by quantity completed.
• Time-based items: unit of time stated with quantity of time units.

Key pricing assumptions:

• No adjustment to lump sum prices if actual quantities differ from estimates; changes only via compensation events (clause 60.1).
• Supplier must allow for correction of Defects in Prices (no compensation event unless Defect is from Supplier's risk).
• Supplier must spread unlisted costs across other Prices to fulfil total obligation.

Quality evaluation:

• Supplier must demonstrate fully implemented QMS compliant with ISO 9001.
• Purchaser may audit Supplier or Sub-Contractor QMS for acceptance.
• Contract Quality Plan (CQP) required within 30 days of Contract Date for review and acceptance before work commences.
• Inspection and Test Plans (ITP) or Quality Control Plans (QCP) required for all activities, with Purchaser intervention points (witness, hold, verification, surveillance, review).

Preference points system: not stated in extracted text.

Scope: Refurbish Tubular Air Heaters Phase 1 – Supply of Material for First Unit at Matimba Power Station

Goods required:

1. Seamless tubes: 20 000 off

• Dimensions: ID 42.5mm, OD 48.3mm, Length 12.5m
• Material: EN10297 E235 +AR
• Annealed 300mm at both ends, weldment cleaned
• Alternative: 20 000 seamed tubes, EN 10296-1 E235+AR (to be priced but not committed)

2. Steel plates: 2 off

• Dimensions: 10 000 x 2 400 x 25mm
• Material: EN10025 S355
• Wear coating: Chesterton ARC S7 AR composite (dry film thickness to be provided prior to delivery)

3. Steel plates: 2 off

• Dimensions: 6 000 x 2 400 x 50mm
• Material: EN10025 S355
• Wear coating: Chesterton ARC S7 AR composite (dry film thickness to be provided prior to delivery)

4. Ceramic wear sleeves: 20 000 off

• Length: 200mm
• Fit for tube internal dimensions
• Side flare length and clearance determined by accepted Supplier design
• Detailed manufacturing drawing required for approval

Design submission:

• Ceramic wear sleeve drawings and calculations within 4 weeks of contract date
• Purchaser feedback within 2 weeks of submission
• Volumetric flow through tubes must not be impacted

Factory acceptance testing:

• 5 working days' notice required
• Sample wear sleeves manufactured for fitment verification before full-scale production

Material certificates required for each batch

Delivery:

• Full delivery to site by contract end date
• 2 working days' notice required before delivery
• Purchaser provides crane or forklift for offloading
• Supplier responsible for packaging, loading, transport
• Tubes to be covered in plastic, stored in containers/boxes with weight and hookup points marked

Pricing format: NEC3 SC3 priced contract with Price Schedule (Part C2)

• Lump sum or rate-based items, or mixture
• Prices assumed fully inclusive of all necessary work
• No quantity adjustment for lump sum items; changes only via compensation events

Currency: South African Rand

Payment terms: as per Eskom terms linked to vendor registration

Interest on late payment:

• ZAR amounts: publicly quoted prime rate of Standard Bank of South Africa (365-day year basis)
• Other currencies: 6-month LIBOR rate from Wall Street Journal or Reuters Monitor Money Rates Service, adjusted every 6 months

Invoice requirements:

• PDF format emailed to [email protected]
• Must include: supplier name and address, contract number and title, VAT registration numbers (Purchaser VAT: 4740101508), itemised pricing, VAT breakdown
• Electronic invoicing mandatory for visibility; does not guarantee payment

Bonds and guarantees (if Options selected):

• Option X4: Parent Company Guarantee
• Option X13: Performance Bond (demand guarantee, maximum stated guaranteed sum, expires on stated Expiry Date)
• Option X14: Advanced Payment Bond (maximum equal to advance payment, expires upon repayment or liquidation by deductions)

Purchaser may withhold payment until required bond/guarantee received and accepted

Quality management:

• ISO 9001 compliant QMS required, fully implemented
• Compliance with Eskom Quality Management requirements per 200 1689 Matimba Power Station Contractor Quality Specification
• Compliance with Purchaser's Quality Requirements Specification 240-105658000
• Contract Quality Plan (CQP) within 30 days of Contract Date, aligned to ISO 10005:2005

Health and safety:

• Compliance with Eskom Life-Saving Rules (6 rules: electrical isolation, working at height, seat belts, sobriety, permit to work, safe live working)
• Zero tolerance for violations; contractor employees removed from site, disciplinary process within 5 working days
• Contractor supervisors allowing violations may have activities suspended

Documentation standards:

• Engineering drawings: MicroStation (DGN) format and PDF; no TIFF, AutoCAD or other formats
• No right protection or encryption on drawings
• Electronic document submission via Large File transfer link in PDF format
• Drawing standard: 240-86973501

Design and intellectual property:

• Title to Supplier's drawings, documents, design transfers to Purchaser per core clause 22.1

Insurance:

• Core clauses 84 and 87 replaced by additional conditions (text not fully extracted)

Subcontracting:

• Preferred subcontractors, limitations, and cataloguing requirements apply (details in Scope of Work)

CSD registration, tax clearance, B-BBEE, CIDB: not stated in extracted text

This tender document is an eTendering system help manual, not a procurement specification. It contains no tender-specific scope, quantities, or technical requirements for the tubular air heater refurbishment. The actual tender details (material specifications, unit quantities, delivery schedules, technical standards) are not present in the extracted text.

Closing date: 28 October 2026 at 10:00

Technical support: contact the buyer responsible for the published tender for system difficulties

• eTendering portal: https://eTendering.eskom.co.za
• Tender bulletin public website: https://tenderbulletin.eskom.co.za

Submission method: electronic upload via Eskom eTendering portal only

• URL: https://eTendering.eskom.co.za
• Registration required before access: CSD number mandatory for registration
• OTP verification: sent to registered cellphone and email address
• File size limit: 50MB per file, 900MB total for all uploaded files
• Document categories for upload: Technical, Commercial, Finance, etc.
• Final submission must be confirmed by clicking "Finalize Submission" — timestamp recorded
• Email confirmation sent after finalisation with submission ID — retain for enquiries
• No physical submission at Eskom tender offices accepted

Procurement: Refurbishment of tubular air heaters — Phase 1, supply of material for First Unit 4

• Location: Limpopo province
• Organisation: Eskom

CSD registration: mandatory for eTendering portal access

• Valid email address and cellphone number required for OTP verification
• Portal registration: must complete all fields, contact number must include +27 prefix

Quality evaluation (Category 1, indicator = 1)

Total quality score: 9 points across five sections

Section A — Quality Management System (ISO 9001): 4 points

• Manufacturer (OEM) must hold valid ISO 9001:2015 certification by an ISO-accredited body
• Product/service scoping on certificate must be defined and relevant
• Certification authority must have recognized international accreditation
• Certificate must be valid (expiry date checked)

Section B — Evidence of QMS in operation: 2 points

• Documented organization chart and responsibility matrix (Clause 5.3 ISO 9001:2015)
• Documented process for control of externally provided processes, products and services, including criteria for evaluation, selection, monitoring and re-evaluation of external providers; supporting evidence required (Clause 8.4 ISO 9001:2015)

Section C — Contract Quality Plan: 1 point

• Draft CQP specific to scope of work (Ref ISO 10005)
• Must demonstrate consistency of design and philosophies across all units
• Must identify roles, responsibilities and expectations, with correct allocation of experienced resources throughout the project period

Section D — Quality Control Plan: 1 point

• QCP/Checklist/ITP for supply and delivery of tubular air heater steel tubes and plates
• Must define quality control measures for: material grade, dimensions, mechanical properties, traceability, inspection, testing, preservation, packaging and delivery
• Must identify roles, responsibilities and supporting quality records for procurement, manufacture, verification and delivery

Section E — User defined additional requirements: 1 point

• Form A completed and signed

Note: No price/functional split, minimum qualifying score, or preference point system (80/20 or 90/10) is stated in the provided text.

Scope: Refurbishment of tubular air heaters — Phase 1

Deliverable: Supply of material for First Unit 4

Materials to be supplied:

• Tubular air heater steel tubes
• Tubular air heater plates

Quality requirements for materials:

• Specified material grade
• Defined dimensions
• Specified mechanical properties
• Full traceability
• Inspection and testing per defined procedures
• Preservation and packaging to specified standards
• Delivery to project requirements

The tender requires consistency of design and philosophies across all units during overall project implementation.

Quality certification

• Manufacturer (OEM) must be certified to ISO 9001:2015 by an ISO-accredited body with recognized international accreditation
• Certificate must be valid and product/service scope must be relevant to this supply

Local production/content

• SBD 6.2 (Declaration for Local Production and Content) applies

Returnable forms required:

• Form A (user-defined additional requirement): must be completed and signed

Note: No B-BBEE level threshold, CIDB grade, CSD registration, tax clearance (SARS TCS/Tax Pin), CIPC registration, professional-body registration, or financial capacity/turnover requirements are stated in the provided text.