Legal risks when using steel sheet without CO, CQ: Consequences many contractors only realize when the construction project is inspected

CO, CQ are not just documents but legal requirements in construction

In the current construction industry, CO (Certificate of Origin) and CQ (Certificate of Quality) are two important documents proving the origin and quality of materials. For many construction projects such as workshops, industrial construction projects, state-funded projects, or construction projects with supervision consultants, providing full CO, CQ is a mandatory requirement in the acceptance dossier.

However, in reality, there are still many cases of using steel sheet of unknown origin, without CO CQ, or with invalid documents. This may not cause immediate problems during construction, but it will become a major risk during document inspection, acceptance, or final settlement.

Risk of construction project acceptance rejection

One of the most common risks when using steel sheet without CO CQ is that the construction project will not be accepted. In the acceptance process, the supervision consultant or investor has the right to request a complete material dossier, including:

• CO – certificate of origin
• CQ – certificate of quality
• Inspection results if needed
• Warehouse release note, invoice

If these documents cannot be provided, the material may be deemed unsatisfactory, leading to the need for replacement or rework of the item.

Risk of contract penalties or non-payment

In construction contracts, especially general contractor or EPC contracts, materials used must comply with design documents and bidding documents. If the documents require galvanised steel sheet Z275 with CO CQ but steel sheet without certificates is actually used, the contractor may be subject to:

• Contract penalties
• Non-payment for volume
• Reduced final settlement value
• Forced material replacement

The cost of replacing materials after construction is often much higher than using the correct materials from the outset.

Risk of violating regulations in state-funded construction projects

For construction projects using budget funds, construction materials must have clear origin and complete documentation as regulated. The use of steel sheet without CO CQ may be considered a violation of construction project quality management regulations.

In case of inspection or audit, the contractor may be required to provide explanations, and even be penalized if the quality of materials cannot be proven.

Quality risks when using steel sheet of unknown origin

Besides legal issues, steel sheet without CO CQ often poses quality risks such as:

• Incorrect thickness
• Insufficient coating layer
• Prone to rust
• Non-standard

These issues can cause the construction project to deteriorate quickly, especially in workshop environments, industrial zones, or coastal areas.

Why many contractors still use steel sheet without CO CQ

The most common reason is lower price. Steel sheet without CO CQ often has a low price due to:

• Unknown origin
• Does not meet high standards
• Not from major factories
• No inspection

However, initial cost savings can lead to significant damage when the construction project is inspected or requires repairs.

When CO CQ is mandatory

• Construction project with supervision consultant
• State construction project
• Industrial construction project
• Large workshop
• Bidding project
• Construction project requiring strict acceptance

How to avoid risks when buying steel sheet for construction projects

To avoid legal and technical risks, contractors should:

• Choose a reputable supplier
• Request CO CQ before purchasing
• Check actual thickness
• Prioritize goods from major factories
• Maintain complete material documentation

Phu Cuong Steel Sheet – Leading Reputable Large Width Steel Sheet Distributor

In many current construction projects, the use of materials with full CO, CQ is a mandatory requirement to ensure smooth acceptance and final settlement. Phu Cuong Steel Sheet is a specialized supplier of galvanised steel sheet, EG steel sheet, GA steel sheet, and large width steel sheet with complete documentation, suitable for workshop construction projects, industrial projects, and projects requiring technical dossiers.

Warehouse always has widths of 1000mm, 1250mm, 1500mm and above available, supporting coil slitting, cutting to specifications, fast delivery by private truck, helping contractors manage progress and reduce construction costs.

• Address: 2177C–2177D QL1A, Dong Hung Thuan Ward, District 12, HCMC
• Phone: 0933 919 899
• Email: tonthepphucuong@gmail.com
• Website: tonthepphucuong.com

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