SURVEY QUESTIONAIRE – FOR SUPPLY OF SERVICE FOR PROVISION REPAIR TRASH RACK 104-Y-002ABC

Nghi Son Refinery & Petrochemical Limited Liability Company (NSRP) is planning for procurement of Sugar to select suitable supplier for supply the good.

If your company is interested in those procurement packages, please fill in and the complete questionnaire below then send email to hiep.lt@nsrp.com.vn  “Response for Provision Repair Trash Rack 104-Y-002ABC” by 11:59pm, 24 Feb 2026 at the latest. For the avoidance of doubt, this notice does not constitute any contractual offer, binding promise or guarantee of business by NSRP.

Please answer the questions below:

Part 1. Survey questionnaire

QUESTION 1: Does your Company have ISO 9001 Series certified or equivalent certificate?

1. Yes

2. No

If yes, please provide documents.

QUESTION 2: Does your company have experience of marine or coastal environments such as:

Seawater intake / outfall structures /Coastal protection works /⁠Intake channel works/ ⁠Seabed excavation and reinstatement /Marine civil rehabilitation work.

1. Yes

2. No

If yes, please provide evidence (scan contracts, Completion work documents…)

QUESTION 3: Does your company have experience in temporary work to create a dry or semi-dry working window such as:

•⁠ ⁠Cofferdam installation

•⁠ ⁠Bund / geotube / sheet pile systems

•⁠ ⁠Local dewatering and hydraulic control

1. Yes
2. No

If yes, please provide evidence (scan contracts, Completion work documents…)

QUESTION 4: Does your company have the capability to supply materials for sea water intake trash rack equipment?

1. Yes
2. No

If yes, please provide evidence.

Appendix 1: Brief SOW

+ General issue:

The NSRP Sea Water Trash Racks (104-Y-002 A/B/C) are located at the Equipment Bays of the Seawater Intake Sump.
They consist of vertical or slightly inclined bars installed perpendicular to the direction of flow.
Their function is to remove debris from the seawater before it enters the intake system.

Due to the severe impact of the storm in 2025, the trash rack screens at the seawater intake system were damaged and bent. In addition, the bolting connections between the trash rack screens and the concrete structure were broken.

+ Service Purpose:

Due to damage to the underwater trash rack screens of the Sea Water Intake System, NSRP requires a qualified Contractor to carry out replacement of the trash rack screens, including temporary seawater isolation, structural and mechanical repairs, reinstallation of equipment, commissioning, and final handover.

The works shall be executed under near-shore and marine conditions while ensuring safety, quality, and minimal impact on remaining operating intake trains.

The objective of this work is to:

– Design and install Temporary Seawater Isolation system to Safely isolate seawater flow for each train.

– Replace damaged underwater trash rack screens

– Repair associated structural and foundation elements

– Reinstall and successfully commission trash rack and associated equipment.

– Remove the Temporary Seawater Isolation system

– Restore the Sea Water trash rack to full and reliable operation.

+ Service Timeline:

We need to complete repairing the trash rack before Y2026 storm season comes

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