| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1099.68 | USD | 20251021 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1000.99 | USD | 20251021 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1254.76 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 1015.09 | USD | 20251021 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1127.19 | USD | 20251020 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |