| Vendor | Spec | Unit | Price | Currency | Date |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1229.53 | USD | 20251201 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1257.79 | 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 | 1229.53 | USD | 20251201 |
| Jinan Pulaihua Chemical Co., Ltd. | China national standards | MT | 1271.92 | USD | 20251201 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1384.98 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1201.26 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |