| Vendor | Spec | Unit | Price | Currency | Date |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 820.53 | USD | 20251211 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 827.6 | USD | 20251211 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 819.75 | USD | 20251210 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 826.82 | USD | 20251210 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 826.59 | USD | 20251209 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 819.52 | USD | 20251209 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 805.39 | USD | 20251209 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 805.49 | USD | 20251208 |
| Shiyou CHEMICAL(Yangzhou) Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |