| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1088.2 | USD | 20251201 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251130 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251130 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251129 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251129 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Dongying Huatai Fine Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |