| NO. | Time | Unit Name | Project name |
| 101 | 2021.11.15 | Chonghui Mining Co., Ltd., Daye City | Transformation of sintering machine desulfurization system |
| 102 | 2021.10.30 | Competitive Future (Wuhan) Energy Development Co., Ltd | Exhaust gas treatment high sulfur system equipment |
| 103 | 2021.10.18 | Jiangxi Guoxuan New Energy Technology Co., Ltd | Single dust collector |
| 104 | 2021.9.24 | Daye Jiehao Trading Co., Ltd | Mechanical and electrical installation contract for desulfurization, denitrification, and dust removal project |
| 105 | 2021.9.20 | Jiangxi Guoxuan New Energy Technology Co., Ltd | Ash discharge valve |
| 106 | 2021.9.20 | Daye Wanhe Aluminum Industry Co., Ltd | Service Contract for Exhaust Gas Discharge of Mixing Tank in the Chemical Room of Tonglushan Mineral Processing Workshop |
| 107 | 2021.9.16 | Jiangxi Guoxuan New Energy Technology Co., Ltd | Dust collector accessories |
| 108 | 2021.9.15 | Hubei Zhenhua Chemical Co., Ltd | Two proof polyester ultra-fine needle punched felt |
| 109 | 2021.9.13 | Jiangsu Tongyue Air Conditioning Co., Ltd | plc controller |
| 110 | 2021.9.1 | Huangshi Chengfa Construction Co., Ltd | Fan replacement |
| 111 | 2021.7.29 | Guangdong Feinan Resource Utilization Co., Ltd | Concentrated cover |
| 112 | 2021.7.27 | Hubei Zhenhua Chemical Co., Ltd | Gas box pulse bag dust collector, valve, dry mist dust suppression system equipment |
| 113 | 2021.7.27 | Hubei Zhonghuan Xin Environmental Protection Technology Co., Ltd | Iron remover, vibrating hopper, vibrating feeder |
| 114 | 2021.7.24 | Daye Xingjin Aluminum Industry Co., Ltd | Slag mill dust collector |
| 115 | 2021.7.23 | Guangdong Feinan Resource Utilization Co., Ltd | Repair and renovation of sintering flue gas cooling and dust collector |
| 116 | 2021.7.18 | Rui'an Jiangnan Aluminum Industry Co., Ltd | Pipeline and custody rack |
| 117 | 2021.7.13 | Huangshi Xinxing Pipe Industry Co., Ltd | Install a dust collector on the sintering return three of the ironmaking department |
| 118 | 2021.7.13 | Daye Yishi Calcium Carbonate Co., Ltd | Installation of air compressor and related accessories |
| 119 | 2021.7.12 | Xiangyang Xingfa Chemical Co., Ltd | Mist remover cathode heavy hammer |
| 120 | 2021.7.12 | Hubei Zhenhua Chemical Co., Ltd | Slag mill dust collector |
| 121 | 2021.7.7 | Guangzhou Jinyu Environmental Technology Co., Ltd | Disassembly and maintenance work |
| 122 | 2021.7.7 | Hubei Xiangrui Environmental Protection Wall Building Materials Co., Ltd | Single pulse dust collector |
| 123 | 2021.7.5 | Rui'an Jiangnan Aluminum Industry Co., Ltd | Stir fry and cool ash integrated machine with bag filter |
| 124 | 2021.7.2 | Shanxi Huaxing Ecological Technology Co., Ltd | 80000 tons/year comprehensive utilization project of waste catalysts and other resources |
| 125 | 2021.7.1 | Qingdao Special Steel Co., Ltd | Continuing construction of environmental protection dust collector valve for raw material yard |
| 126 | 2021.6.30 | Hubei Weichen Environmental Protection Technology Co., Ltd | Production Details of Blast Furnace Material Gu |
| 127 | 2021.6.30 | Hubei Weichen Environmental Protection Technology Co., Ltd | Rectification details of dust cover at the feeding port of the blast furnace |
| 128 | 2021.6.24 | Jiangxi Huatai Aluminum Industry Co., Ltd | Pulse valve accessories |
| 129 | 2021.6.18 | Huaifang Longda New Materials Co., Ltd | Hazardous waste pyrometallurgical resource utilization project |
| 130 | 2021.6.8 | Huangshi Chengfa Construction Co., Ltd | Single machine pulse bag filter |
| 131 | 2021.6.6 | Huangshi Chengfa Construction Co., Ltd | Construction Material Dust Labor Subcontract Contract |
| 132 | 2021.6.5 | Rui'an Jiangnan Aluminum Industry Co., Ltd | Aluminum industry specific fabrics, frames, and shipping costs |
| 133 | 2021.5.31 | Hubei Weichen Environmental Protection Technology Co., Ltd | Rectification of Blast Tower |
| 134 | 2021.5.17 | Hubei Weichen Environmental Protection Technology Co., Ltd | Replacement of material windows in the blower building |
| 135 | 2021.5.12 | Hubei Wanjiahong Aluminum Industry Co., Ltd | Cloth bag, skeleton |
| 136 | 2021.5.11 | Xuzhou Fushen Import and Export Co., Ltd | Buried scraper forging chain |
| 137 | 2021.4.16 | Aerospace Kaitian Environmental Protection Technology Co., Ltd | Pulse injection system |
| 138 | 2021.4.16 | Daye Yishi Calcium Carbonate Co., Ltd | Dust removal project for calcite crushing production line |
| 139 | 2021.4.23 | Guangdong Jinyu Environmental Technology Co., Ltd | Disassembly and maintenance work |
| 140 | 2021.4.13 | Equipment Maintenance Labor Contract | Maintenance labor contract |
| 141 | 2021.4.5 | Hubei Huabo New Materials Technology Co., Ltd | Cloth bag, skeleton |
| 142 | 2021.3.22 | Guangdong Jinyu Environmental Technology Co., Ltd | Production and installation of box burning dust collector |
| 143 | 2021.3.22 | Guangdong Jinyu Environmental Technology Co., Ltd | Repair and renovation“ |
| 144 | 2021.3.9 | Yingde Xinyu Nonferrous Metal Recycling Resources Products Co., Ltd | Disassembly, assembly, and maintenance |
| 145 | 2021.3.5 | Hubei Lizhong New Material Technology Co., Ltd | 4 ㎡ smelting furnace slag flushing flue gas treatment |
| 146 | 2021.2.23 | Chenjiashan Mining Co., Ltd., Daye City | supplemental contract |
| 147 | 2021.2.23 | Huangshi Asia Pacific Energy saving Technology Co., Ltd | Fan, water pump |
| 148 | 2021.2.23 | Huanggang Huayao Zhongxing Kiln Co., Ltd | Material preparation system bag filter |
| 149 | 2021.2.1 | Guangdong Jinyu Environmental Technology Co., Ltd | Cathode line |
| 150 | 2021.1.27 | Hubei Zhonghuan Xin Environmental Protection Technology Co., Ltd | Drying system desulfurization tower spray layer renovation Box burning system spray layer renovation |