The provisions of the construction contract is invalid?

What are the provisions of the construction contract is invalid, the following Zhongda consulting bidding teacher for you to answer for reference.

In addition to the provisions of the Contract Law on the invalid contract on the construction contract all applicable, there are the following additional provisions:

(1) the contractor beyond the scope of its business, the qualification level of the contract signed by the invalid.

(2) Where bidding is required by law but is not carried out in accordance with the law, or where the bidding process violates the principles of openness, fairness, impartiality and honesty and good faith as stipulated in the Bidding and Tendering Law, this will inevitably result in the contract being invalidated or likely to be invalidated.

The following five violations of the bidding and tendering law will lead to the contract is necessarily invalid.

1) the works which should be tendered but not tendered;

2) the bidder leaks the bidding price;

3) the bidder colludes and cheats and inflates the bidding price, which makes it difficult to fix the bidding price or fails to determine the winning bidder;

4) the bidder colludes with the bidders maliciously and determines the winning bidder internally;

5) the national key construction projects and large-scale construction projects

Where it is a public tender and its bidders are less than three, or the invitation to tender is approved and the units participating in the invitation to tender are less than three.

The following four items may lead to invalidation of the contract:

1) concealment of the true situation of the project by the bidder;

2) failure of the bidder to truthfully fill in the application for bidding qualification and misrepresentation of the enterprise qualification level;

3) receipt of bribes from the bidder by the bidder;

4) other violations of the principles of openness, fairness, impartiality and honesty and credit.

(3) Contracts not concluded in writing. Article 270 of the contract law: the conclusion of the "construction contract shall be in writing", such as if the parties to enter into a construction contract, not in writing, in addition to "one party has performed the main obligations, and the other party accepts, the contract is established! "Except for the other party has fulfilled the main obligations, and the other party accepts, the contract is established", the rest are invalid contract.

(4) contracts that violate the state plan. Article 273 of the contract law provides that: "the state major construction contracts, shall be concluded in accordance with the state procedures and state-approved investment plan, feasibility study report and other documents", violation of the national plan of construction contract is invalid. Construction engineering contract of the plan, mainly in:

1) for the state investment in the construction of infrastructure, must obey the national plan;

2) the state in a certain period of time on certain projects need to make restrictions, must obey the state's restrictions.

(5) Contracts that violate the provisions of subcontracting and assignment. Laws and regulations have made strict provisions on the transfer and subcontracting of construction contracts. Any transfer and subcontracting carried out in violation of these provisions are invalid. The common ones are:

1) the contractor will be a contractor to complete the construction project, dismembered into several parts, distributed to several contractors;

2) the contractor without the consent of the contractor, will be contracted by the contractor of all or part of the project subcontracted to a third person;

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