How to fill in the name of the relevant subject in the contract after winning the bid for government procurement?

After winning the bid for government procurement, the filling format of the relevant subject name evaluated by (relevant subject name) in the contract:

1, the signing of the contract shall comply with the government procurement law and the contract law.

2. When signing the contract, the purchaser, the winning bidder and Party A are the full names of the purchaser. Party B is the full name of the winning bidder.