| Vendor | Spec | Unit | Price | Currency | Date |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1226.23 | USD | 20251017 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1381.27 | USD | 20251017 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251017 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.9 | USD | 20251017 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.62 | USD | 20251017 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |