2, Kinds of invitation to tender (1)Open Bidding or International Competitive Bidding Note: The purchase under World Banks loan mostly adopt the international competitive bidding (2)Selected Bidding 3)Negotiated Bidding (4)TWO-stage Bidding o It's a combination way of opening bidding and selected bidding2. Kinds of Invitation to Tender ◼ (1) Open Bidding or International Competitive Bidding Note: The purchase under World Bank's loan, mostly adopt the international competitive bidding. ◼ (2) Selected Bidding ◼ (3) Negotiated Bidding ◼ (4) Two-stage Bidding • It’s a combination way of opening bidding and selected bidding