| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 155.38 | USD | 20251202 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 211.88 | USD | 20251202 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 261.32 | USD | 20251202 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 197.76 | USD | 20251202 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.51 | USD | 20251202 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 268.38 | USD | 20251202 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 240.13 | USD | 20251202 |
| Henan Sendi Environmental Protection Technology Co., Ltd. | China national standards | MT | 194.93 | USD | 20251202 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 233.07 | USD | 20251202 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.26 | USD | 20251202 |