QUESTIONAIRE SURVEY – FOR QUALIFICATION BIDDER OF “ENGINEERING, PROCUREMENT, CONSTRUCTION, PRE-COMMISSIONING AND COMMISSIONING FOR UPGRADE OF TRAYS AND INTERNAL DESIGN FOR VACUUM DRIER 014-C-202” PACKAGE

Date: 22-Apr-26, Rev.0

Nghi Son Refinery & Petrochemical Limited Liability Company (NSRP) is planning for the procurement of EPC of Upgrade of Upgrade trays and internal design for vacuum drier 014-C-202.

If your company is interested in those procurement packages, please fill in and complete the questionnaire below then send email to anh.nt6@nsrp.com.vn

Subject: “Respond for Questionnaire – EPC of Upgrade of Upgrade trays and internal design for vacuum drier 014-C-202” by 17:00PM 28 Apr 2026 at the latest

1. General scope of work

NSRP operates the Vacuum Dryer 014-C-202 equipped with disc and donut trays to reduce water vapor pressure and lower moisture content in the liquid phase. At present, all trays inside the 014-C-202 are damaged, affecting the unit’s efficiency and operational stability.

Licensor Axens has evaluated the current vacuum dryer system and proposed a technical solution to address the situation. The proposed improvements include:

• Disc #1 and Donut #2 shall be removed (total trays reduce from 8 to 6 trays)
• Increase of tray spacing of all remaining discs and donuts (450mm to 600mm)
• Adjusting the level spacings (soft setting) to ensure residence time.
• Modification of inlet Nozzle to new baffle-top assembly, replacing feed pipe with 90° elbow
• Additional support beams and surrogate supports.

The Contractor shall provide full Engineering, Procurement, Construction/ Installation and Commissioning assistant (EPC) services for the upgrade trays and internal design for Vacuum drier 014-C-202 project (the “Works”)

The Contractor shall furnish all management, engineering, manpower, materials, equipment, tools, consumables, spare parts, temporary facilities, and services necessary to complete the Works in accordance with this Contract to the satisfaction of NSRP.

Column Internals (CI) are licensed by Axens, who has provided the feasibility study for the vacuum dryer system process revamping. Koch-Glitsch, a vendor recommended by Axens will provide its own equipment and guarantee hydraulics and mechanical design. This scope forms an integral part of the Contractor’s overall Scope of Work.

The general Scope of Work includes, but is not limited to:

• Overall project management and coordination.
• Design, fabrication, inspection, testing, delivery of Column Internals.
• Procurement of all equipment, materials, spare parts, and services required for site modification and installation.
• Execution of site modification and installation works.
• Inspection, testing, and quality certification.
• Verify and certify in writing the conditions of readiness for Commissioning and Start-up by Tray’s vendor and Contractor.
• Commissioning and start-up assistance and work jointly with NSRP as one integrated team.
• Performance testing and performance guarantees by Tray’s vendor and Contractor.

2. Questionnaire

(1) Bidder shall submit a copy of the business/enterprise registration certificate and/or an extract from the national portal for enterprise registration showing the relevant business lines to provide the services and all licenses required for providing the services (if any).

(2) Bidder shall submit the Memorandum of Understanding (MOU) or agreement showing the engagement with Koch Engineering Solutions (KES) (consortium or sub-contract). The following information must be included in the MOU:

• Parties Involved

• Responsibilities of Each Party

• Scope of Collaboration

(3) Do you have validated Quality Management Certification ISO 9001. If yes, please provide evidence.

(4) Bidder is requested to submit the following documents to demonstrate that Bidder has experience in executing installations during Shutdown / Turnaround / Outage projects in refineries, gas/petrochemical plants, or similar heavy industrial production facilities:

• Two (02) reference contracts, along with the corresponding final approval/acceptance certificates, within the past 10 years for performing mechanical installation works during Shutdown / Turnaround / Outage in a refinery, gas/petrochemical plant, or similar heavy industrial production facility.

(5) Bidder is requested to submit at least two (02) reference contracts within the past 10 years including supporting evidence to demonstrate Bidder’s experience in executing EPC projects.

(6) Bidder is requested to provide HSSE Plan (HSE Policy statement, a corporate HSE plan, Project HSE plan) and HSE procedure (PPE management, Hot work, Confine space entry, Working at high, LOTO, etc.).

(7) If you are interested in providing this EPC service, please estimate the Bid preparation timeline (from receiving RFQ to bid submission).

(8) If you are interested in providing this EPC service, please estimate the work execution timeline (from commencement to completion date).

https://nsrp.vn/wp-content/uploads/2026/04/SP260401_Questionnaire-Survey_r1.docx