| Vendor | Spec | Unit | Price | Currency | Date |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.08 | USD | 20251020 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.08 | USD | 20251020 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.14 | USD | 20251017 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.14 | USD | 20251017 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.09 | USD | 20251016 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.09 | USD | 20251016 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.03 | USD | 20251015 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.03 | USD | 20251015 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 168.96 | USD | 20251014 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 168.96 | USD | 20251014 |