| Fujian Dongnan Copper |
Smelter Acid |
148 |
Maintenance on Jan 3 |
Restart on Jan 24 |
| Guangdong Shaoguan Guangbao |
Ore-Based Acid |
13 |
Maintenance on Jan 10 |
Restart on Jan 25 |
| Guangdong Huizhou Shengda New Materials |
Sulfur-Burning Acid |
60 |
Maintenance in January |
Restart time TBD |
| Hebei Kaitai Chemical |
Ore-Based Acid |
15 |
Shutdown in mid-January |
Restart on Mar 25 |
| Shandong Xintai Mingrui Chemical |
Ore-Based Acid |
30 |
Maintenance on Jan 28 |
Planned restart on Feb 2 |
| Hunan Zhuzhou Smelting |
Smelter Acid |
60 |
Maintenance on Feb 3 |
Planned maintenance for 1 week |
| Hubei Yangxin Hongsheng Copper |
Smelter Acid |
150 |
Maintenance on Feb 5 |
Planned maintenance for 1 week |
| Guangdong Jintai Chemical |
Ore-Based Acid |
20 |
Maintenance on Feb 24 |
Planned maintenance for 23 days |
| Shandong Shangneng |
Other Acid |
4 |
Maintenance on Mar 6 |
Restart on Mar 20 |
| Henan Xinling Lead Industry |
Smelter Acid |
40 |
Maintenance on Mar 10 |
Planned maintenance for 1 month |
| Yunnan Southwest Copper |
Smelter Acid |
140 |
Maintenance on Mar 11 |
Planned restart on May 3 |
| Shandong Xingya |
Sulfur-Burning Acid |
20 |
Maintenance on Mar 12 |
Planned restart on Mar 31 |
| Henan Yuguang Gold & Lead |
Smelter Acid |
15 |
Maintenance on Mar 10 |
Planned maintenance for 1 month |
| Shandong Jincheng Petrochemical |
Other Acid |
25 |
Maintenance on Mar 13 |
Restart on Apr 4 |
| Xinjiang Wuxin Copper |
Smelter Acid |
50 |
Maintenance on Mar 16 |
Planned maintenance for 20–30 days |
| Zhejiang Heding Copper |
Smelter Acid |
70 |
Maintenance on Mar 18 |
Planned maintenance for 1 month |
| Zhejiang Ningbo Xinfu |
Sulfur-Burning Acid |
60 |
Maintenance on Mar 19 |
Planned maintenance for 1 month |
| Henan Zhongyuan Gold |
Smelter Acid |
150 |
Maintenance on Mar 23 |
Planned restart in late April |
| Inner Mongolia Wuhai Yadong |
Smelter Acid |
40 |
Maintenance on Mar 25 |
Early May 2026 |
| Guangxi Nanguo Copper |
Smelter Acid |
160 |
Planned maintenance in March |
Rotational maintenance |
| Zhejiang Jiahua |
Sulfur-Burning Acid |
30 |
Maintenance on Apr 1 |
Restart on May 6 |
| Panjin Haoye |
Other Acid |
15 |
Planned maintenance in early April |
Planned maintenance until July |
| Ningxia Kaidi |
Ore-Based Acid |
12 |
Maintenance on Apr 8 |
Planned maintenance for 20 days |
| Qinghai Copper |
Smelter Acid |
66 |
Maintenance on Apr 10 |
Planned maintenance for 30 days |
| Hebei Cangzhou Xulong Chemical |
Sulfur-Burning Acid |
50 |
Apr 20, 2026 |
TBD |
| Shandong Yantai Hengbang |
Smelter Acid |
45 |
Apr 25, 2026 |
Planned restart in mid-June |
| Guangdong Xianghe Chemical |
Ore-Based Acid |
20 |
Maintenance on Apr 25 |
Planned maintenance for 1 month |
| Guangxi Chuanjinnuo |
Sulfur-Burning Acid |
30 |
Shutdown on May 1 |
TBD |
| Shandong Yantai Hengbang |
Smelter Acid |
50 |
May 8, 2026 |
Planned maintenance for 30 days |
| Shandong Jianlong |
Sulfur-Burning Acid |
10 |
May 6, 2026 |
Planned restart on Jun 10 |
| Yunnan Dianzhong Nonferrous |
Smelter Acid |
50 |
Maintenance on May 6 |
Planned maintenance for 20 days |
| Shandong Yingxuan |
Sulfur-Burning Acid |
40 |
Maintenance on May 7 |
TBD |
| Anhui Tongling Nonferrous |
Smelter Acid |
180 |
Maintenance on May 7 |
Planned maintenance for 50 days |
| Gansu Baiyin |
Smelter Acid |
70 |
Maintenance on May 7 |
Planned restart in late June |
| Gansu Jinchuan |
Smelter Acid |
120 |
Maintenance on May 8 |
Planned restart at end of June |
| Shandong Mingda Chemical |
Sulfur-Burning Acid |
12 |
Maintenance on May 8 |
Maintenance period 42 days |
| Henan Yuguang Gold & Lead |
Smelter Acid |
60 |
Maintenance on May 12 |
Restart on Jun 9 |
| Shandong Xingya |
Sulfur-Burning Acid |
20 |
Maintenance on May 17 |
TBD |
| Shandong Binyang Fuel Chemical |
Other Acid |
10 |
Maintenance on May 25 |
Restart on Jul 5 |
| Shandong Minji |
Sulfur-Burning Acid |
30 |
Maintenance on May 26 |
TBD |
| Guangxi Guinan Chemical |
Sulfur-Burning Acid |
23 |
Shutdown on May 26 |
TBD |
| Weihai Hengbang |
Smelter Acid |
80 |
Maintenance on May 29 |
Jul 3, 2026 |
| Anhui Jinxuan |
Sulfur-Burning Acid |
60 |
Maintenance on Jun 1 |
Planned maintenance for 10 days |
| Sichuan Zigong Hongyi |
Ore-Based Acid |
25 |
Maintenance in early June |
Planned restart on Jun 20 |
| Hubei Nanzhang Longmang Phosphorus Chemical |
Sulfur-Burning Acid |
30 |
Shutdown on Jun 6 |
TBD |
| CNMC Kubo Hongye Zinc |
Smelter Acid |
44 |
Maintenance on Jun 8 |
Planned restart on Jul 10 |
| Shandong Guoda Gold |
Smelter Acid |
20 |
Maintenance on Jun 10 |
Planned maintenance for 30 days |
|
Ore-Based Acid |
20 |
Maintenance on Jun 10 |
Restart on Jun 29 |
| Shandong Yatong Petrochemical |
Other Acid |
35 |
Maintenance on Jun 10 |
Restart on Jul 18 |
| Shandong Qicheng |
Other Acid |
20 |
Maintenance on Jun 11 |
Restart on Jul 1 |
| Hubei Yangxin Hongsheng Copper |
Smelter Acid |
150 |
Maintenance on Jun 13 |
Planned restart on Aug 10 |
| Hunan Zhuye |
Smelter Acid |
25 |
Maintenance on Jun 15 |
Planned maintenance for 15 days |
| Shandong Shangneng |
Other Acid |
4 |
Maintenance on Jun 16 |
Restart on Jul 27 |
| Shandong Zhongjin Lingnan |
Smelter Acid |
120 |
Jun 20, 2026 |
Restart on Jul 18 |
| Shandong Shengxing |
Other Acid |
10 |
Maintenance on Jun 23 |
Restart on Jul 1 |
| Shandong Kelida |
Other Acid |
3 |
Maintenance on Jun 23 |
Planned maintenance for 15 days |
| Shandong Shenchi Chemical |
Other Acid |
5 |
Maintenance on Jun 24 |
Restart on Jul 22 |
| Shandong Dongying United Petrochemical |
Other Acid |
15 |
Maintenance on Jun 25 |
Aug 14, 2026 |
| Bayannur Feishang |
Smelter Acid |
40 |
Maintenance on Jun 25 |
Planned maintenance for 20 days |
| Bayannur Zijin |
Smelter Acid |
40 |
Maintenance on Jun 25 |
Planned maintenance for 3 months |
| Hubei Lomon Billions Titanium |
Sulfur-Burning Acid |
40 |
Planned shutdown in late June |
TBD |
| Jiangsu Sopo |
Sulfur-Burning Acid |
30 |
Maintenance on Jun 30 |
Planned maintenance for 30 days |
| Zhejiang Ningbo Xinfu |
Sulfur-Burning Acid |
60 |
Maintenance on Jun 30 |
TBD |
| Gansu Baiyin |
Smelter Acid |
15 |
Maintenance on Jul 1 |
Planned maintenance for 25 days |
| Gansu Jinchuan |
Smelter Acid |
80 |
Maintenance on Jul 2 |
Planned maintenance for 30 days |
| Anhui Zhongyuan |
Ore-Based Acid |
15 |
Maintenance on Jul 9 |
Restart on Aug 15 |
| Shandong Wudi Xinyue |
Other Acid |
15 |
Maintenance on Jul 13 |
Planned restart on Sep 11 |
| Shandong Laizhou Jinjia Environmental Protection |
Ore-Based Acid |
24 |
Maintenance on Jul 17 |
Restart on Sep 1 |
| Hunan Shuikoushan Nonferrous |
Smelter Acid |
12 |
Maintenance on Jul 25 |
Planned maintenance for 1 month |
| Shandong Lianmeng |
Ore-Based Acid |
15 |
Maintenance on Jul 27 |
Aug 10, 2026 |
| Zhejiang Juhua |
Sulfur-Burning Acid |
30 |
Maintenance on Jul 27 |
Restart on Aug 10 |
| Henan Anyang Minshan Environmental Energy |
Smelter Acid |
10 |
Maintenance on Jul 29 |
Restart on Aug 6 |
| Liaoning Dashiqiao Shengma |
Smelter Acid |
10 |
Maintenance on Aug 1 |
Planned maintenance for 1 month |
| Gansu Baiyin |
Smelter Acid |
25 |
Maintenance on Aug 1 |
Planned maintenance for 1 month |
| Jiangsu Sopo |
Sulfur-Burning Acid |
60 |
Maintenance on Aug 6 |
Planned maintenance for 15 days |
| Shandong Laiwu Jinshan |
Ore-Based Acid |
80 |
Maintenance on Aug 10 |
Planned restart on Sep 13 |
| Shandong Luxi Chemical |
Sulfur-Burning Acid |
50 |
Maintenance on Aug 11 |
Restart on Aug 31 |
| Gansu Jinchuan |
Smelter Acid |
70 |
Maintenance on Aug 15 |
Planned maintenance for 1 month |
| Chifeng Shanjin Silver & Lead |
Smelter Acid |
10 |
Planned maintenance on Aug 20 |
Planned maintenance for 1 month |
| Henan Yuguang Gold & Lead |
Smelter Acid |
30 |
Maintenance on Aug 20 |
Planned maintenance for 1 month |
| Henan Wanyang |
Smelter Acid |
30 |
Maintenance on Aug 31 |
Planned maintenance for 1 month |
| Liaoning Huludao Zinc |
Smelter Acid |
100 |
Planned maintenance in Q3 |
Planned maintenance for 1 month |
| Inner Mongolia Xing'an Copper-Zinc Smelting |
Smelter Acid |
20 |
Planned maintenance in September |
Planned maintenance for 1 month |
| Shandong Guoda Gold |
Smelter Acid |
20 |
Planned maintenance on Sep 22 |
Planned maintenance for 30 days |
|
Ore-Based Acid |
20 |
Planned maintenance on Sep 22 |
Planned maintenance for 30 days |
| Henan Jinli Gold & Lead |
Smelter Acid |
30 |
Planned maintenance in mid-September |
Planned maintenance for 1 month |
| Anhui Jinpu New Energy |
Ore-Based Acid |
30 |
Planned maintenance in late September |
Planned maintenance for 15 days |
| Guangxi Jinchuan Nonferrous |
Smelter Acid |
120 |
Planned maintenance in October |
Planned maintenance for 55 days |
| Shandong Yanggu |
Smelter Acid |
170 |
Planned maintenance on Oct 9 |
Planned maintenance for 25 days |
| Henan Yuguang Gold & Lead |
Smelter Acid |
20 |
Planned maintenance on Oct 10 |
Planned maintenance for 1 month |
| Anhui Jinxin |
Smelter Acid |
170 |
Planned maintenance in November |
Planned maintenance for 20 days |
| Jiangxi Copper |
Smelter Acid |
120 |
Planned maintenance in November |
Planned maintenance for 25 days |
| Yunnan Yunxi Copper |
Smelter Acid |
44 |
Planned maintenance in November |
Planned maintenance for 45 days |
| Fujian Zijin Copper |
Smelter Acid |
100 |
Planned maintenance on Nov 4 |
Planned maintenance for 23 days |
| Yunnan Yimen Copper |
Smelter Acid |
42 |
Planned maintenance in December |
Planned maintenance for 45 days |
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