| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 939.2 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | Industrial Grade | MT | 904.16 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 897.15 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 932.2 | USD | 20250814 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 841.08 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 785.01 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 841.08 | USD | 20250814 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 840.93 | USD | 20250813 |