[practical reference] invalid construction contract of construction project violates the mandatory provisions of laws and administrative regulations.
Yang Guanghui 15564418870 summarizes: (1) the contractor has not obtained the qualification of construction enterprise; （2） The contractor exceeds the qualification level and fails to obtain the corresponding qualification level before the completion of the construction project; （2） An unqualified actual constructor borrows the name of a qualified construction enterprise; （3） A construction project must be subject to bidding but fails to do so or the bid winning is invalid; （4） Subcontracting or illegal subcontracting; （5） No planning approval procedures such as construction project planning permit were obtained before prosecution…
