Main construction and additional construction are judged as separate construction units, the provision of project loss was not properly recognized. For additional construction part, provision for losses was expected; however considering that adding two projects together would prevent loss of orders, and not recording the provision for losses on contracts, resulted in a mismatch between the units of the construction units and the units of the provision of losses. And include some costing down/cost reduction (CD/CR) with no specific supporting basis exists, and not recording the provision for losses on contracts. As another case , if the contract revenue and cost can be estimated, also can estimate that the project will occur loss in the future, the provision for losses on contracts was not recognized properly due to not apply to the PoC.(Provision for losses on contracts)