| Vendor | Spec | Unit | Price | Currency | Date |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.41 | USD | 20251112 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.33 | USD | 20251111 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.36 | USD | 20251110 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.41 | USD | 20251107 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.34 | USD | 20251106 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.25 | USD | 20251105 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.29 | USD | 20251104 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.29 | USD | 20251104 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.33 | USD | 20251103 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.34 | USD | 20251030 |