【Haichuan EPC】Which specialized works in petrochemical project installation should be contracted out separately?

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Specialized tasks in the installation phase of refining and chemical processing projects that should be contracted out separately. I. Certain specialized tasks within the installation phase of refining and chemical processing projects are generally contracted out as separate projects based on their specific nature. The main reasons for this approach are as follows: 1. To meet the requirements of project management, the project owner arranges for third-party inspections of the project quality. Such as non-destructive testing, hardness analysis, valve pressure testing, etc. 2. Results of specialized segmentation: heavy lifting, steel structure fabrication, and lining construction for furnaces and equipment. 3. The department has further strengthened construction management; in accordance with Sinopec’s \"Guidelines for the Installation Management of Flange Sealing Structures in Engineering Construction Projects\" {Shareholder Work Order Jian’an No. 85}, bolted fastening with fixed torque is required for flange structures. Given the high level of professionalism involved in providing such fixed-torque fastening services, these tasks are entrusted to specialized service providers. 4. The specifications of some sub-items specified in the professional quotas cannot meet the requirements for pricing, such as equipment pickling and chemical cleaning. 5. The sub-items designated under certain professional quotas do not match well with the actual conditions on site, and there are significant price differences among different sub-items for similar tasks, such as the installation of various types of furnaces and catalysts. II. The aforementioned specialized projects should be contracted out separately according to their respective specialties, which helps to ensure the quality and schedule of the work. To reduce pricing disputes, it is recommended that these specialized projects be contracted out at a comprehensive unit price including all costs or at a fixed total price. III. Projects that should be contracted out separately by specialty: 1. Non-destructive testing and hardness analysis ； 2. Acid cleaning and chemical cleaning of equipment pipelines ； 3. Installation of various types of furnaces ； 4. Steel structure fabrication ； 5. Construction of furnace and equipment linings ； 6. Catalyst and filler loading ； 7. Valve pressure testing ； 8. Lifting of large items ； 9. Professional technical services for torque-controlled fastening.