| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.6 | USD | 20251204 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.6 | USD | 20251204 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.6 | USD | 20251204 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.28 | USD | 20251203 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.28 | USD | 20251203 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1116.54 | USD | 20251203 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.28 | USD | 20251203 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.28 | USD | 20251203 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.28 | USD | 20251203 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1087.66 | USD | 20251202 |