| Vendor | Spec | Unit | Price | Currency | Date |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.39 | USD | 20251029 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.39 | USD | 20251029 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.36 | USD | 20251028 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.3 | USD | 20251027 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.3 | USD | 20251027 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.21 | USD | 20251023 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.12 | USD | 20251022 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.12 | USD | 20251022 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.18 | USD | 20251021 |
| Tongdai Haijing NATURAL SODA Co., Ltd. | China national standards | MT | 169.18 | USD | 20251021 |