| Vendor | Spec | Unit | Price | Currency | Date |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.38 | USD | 20251124 |
| Henan Shunzhibang Environmental Protection Technology Co., Ltd. | China national standards | MT | 254.07 | USD | 20251124 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 155.26 | USD | 20251124 |
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 176.44 | USD | 20251124 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 211.72 | USD | 20251124 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 261.13 | USD | 20251124 |
| Henan Lanen Chemical Co., Ltd. | China national standards | MT | 177.85 | USD | 20251124 |
| Shandong Chuangxin Chemical Co., Ltd. | China national standards | MT | 159.5 | USD | 20251124 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 169.38 | USD | 20251124 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 211.72 | USD | 20251124 |