Group 1 - The core viewpoint of the article is the procurement of electric buses by Shanghai Xiantong Rapid Bus Construction Management Co., Ltd., which includes the purchase of 20 units of 18-meter fast-charging electric buses and 15 units of 12-meter fast-charging electric buses, totaling 35 units with a total budget of 63 million yuan [1][3][12] Group 2 - The project for the 18-meter electric bus has a budget of 42 million yuan and requires an 8-year warranty for the vehicles [3][6] - The deadline for submitting bids for the 18-meter bus project is September 8, 2025, at 11:00 AM Beijing time [2][8] - The project for the 12-meter electric bus has a budget of 21 million yuan, with a similar warranty requirement [12][14] - The deadline for submitting bids for the 12-meter bus project is also September 8, 2025, but at 10:30 AM Beijing time [21] Group 3 - The procurement is open to various types of suppliers, including large, medium, small, and micro enterprises, as well as social organizations [6][19] - The procurement process emphasizes compliance with government procurement laws and policies, particularly those promoting energy-saving and environmentally friendly products [6][18] Group 4 - The procurement documents for both projects can be obtained online through specified channels, with a document fee of 2000 yuan [8][20] - The contracts for both projects require delivery and completion of vehicle registration by November 5, 2025 [4][15]