| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1189.95 | USD | 20251201 |
| Wudi Xinyue Chemical Group Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1215.39 | USD | 20251201 |
| Befar Group Co., Ltd. | China national standards | MT | 1342.59 | USD | 20251201 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1215.39 | USD | 20251201 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1229.53 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1208.33 | USD | 20251201 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1271.92 | USD | 20251201 |