Article 7 All types of engineering and construction projects within the scope of the provisions of Article 2 to Article 6 of the present provisions, including the project's survey, design, construction, supervision and procurement of important equipment and materials related to engineering and construction must be tendered if they meet one of the following standards:
p> (i) Where the estimated price of a single contract for construction is more than RMB 2 million;
(ii) Where the estimated price of a single contract for the procurement of important equipment, materials and other goods is more than RMB 1 million;
(iii) Where the estimated price of a single contract for the procurement of services such as surveying, designing, supervising and so on is more than RMB 500,000;
(iv) Where the estimated price of a single contract is less than the price set out in paragraph (a)(i); and (e) Where the estimated price is less than the standard specified in subparagraphs (i), (ii) and (iii). However, the total investment of the project is more than RMB 30 million.
So if the answer to your scope should be 1 million yuan for the limit! Specifically whether the need for bidding details see "the scope of the construction project bidding and scale standards (State Development Planning Commission Decree No. 3)"