| NO. | Time | Unit Name | Project name |
| 51 | 2023.2.1 | Processing Plant (Malaysia Project)“ | 36000 air volume - bag dust removal equipment and kiln exhaust gas treatment equipment |
| 52 | 2022.12.24 | Jiangsu Jinxuan Ceramic Equipment Co., Ltd | Maintenance project |
| 53 | 2022.7.10 | Huangshi Xinxing Pipe Industry Co., Ltd | Rectification and supplementation of flue gas and pipelines in the vertical furnace of the drying workshop |
| 54 | 2022.12.10 | Guangdong Jinyu Environmental Technology Co., Ltd | Huangshi Factory Hazardous Waste Warehouse Volatile Organic Compounds Improvement Project |
| 55 | 2022.12.6 | Taiwan Optoelectronics Materials (Huangshi) Co., Ltd | Bag replacement |
| 56 | 2022.11.24 | Hubei Wanjiahong Aluminum Industry Co., Ltd | Fire process workshop smelting furnace feeding port renovation project |
| 57 | 2022.11.30 | Hubei Weichen Environmental Technology Co., Ltd | Bag filter for rotary kiln head, kiln tail and zinc oxide feeding system |
| 58 | 2022.11.21 | Jiangxi Baohai Environmental Protection Technology Co., Ltd | Carbon steel sulfuric acid tank |
| 59 | 2022.11.5 | Hubei Hongrun High tech New Materials Co., Ltd | Vacuum Induction Furnace Bag Dust Collector General Contracting Project |
| 60 | 2022.11.4 | Daye Special Steel Co., Ltd | Wall construction contract, track construction contract |
| 61 | 2022.10.31 | Hubei Xingyi New Material Technology Co., Ltd | Contract for Exhaust Gas Absorption Tower of Positive Electrode Material Kiln |
| 62 | 2022.10.24 | Ningxia Baofeng Energy Storage Materials Co., Ltd | Smoke pipe renovation |
| 63 | 2022.4.28 | Huangshi Chenmao Aluminum Industry Co., Ltd | Raise the chimney of the sludge workshop |
| 64 | 2022.9.22 | Huizhou TCL Environmental Technology Co., Ltd | Environmental burning, special exhaust project for flue gas from fuming furnace, supply of dust collector and pipeline renovation |
| 65 | 2022.9.9 | Guangdong Jinyu Environmental Technology Co., Ltd | Contract for Waste Gas Treatment Engineering |
| 66 | 2022.9.14 | Hubei Hongrun High tech New Materials Co., Ltd | Bag dust removal and tail gas absorption tower equipment |
| 67 | 2022.9.14 | Hubei Hongmai High tech New Materials Co., Ltd | Production of reflector furnaces and boilers |
| 68 | 2022.9.7 | Guangdong Hongxing Environmental Protection Technology Co., Ltd | Lime kiln desulfurization system |
| 69 | 2022.7.23 | Daye Changhe Metallurgical Raw Materials Co., Ltd | Duoji centrifugal fan maintenance |
| 70 | 200.8.30 | Huangshi Mingyang Jihan Electronics Co., Ltd | Equipment Maintenance Labor Contract |
| 71 | 2022.8.25 | Hubei Zhonghuan Xin Technology Co., Ltd | Upgrading and Renovation Project of Environmental Protection Facilities for Waste Gas Treatment |
| 72 | 2022.8.24 | Guangdong Hongxing Environmental Protection Technology Co., Ltd | supplemental contract |
| 73 | 2022.8.10 | Hubei Zhenhua Chemical Co., Ltd | Link Plate |
| 74 | 2022.7.26 | Guangdong Feinan Resource Utilization Co., Ltd | Dust collector maintenance |
| 75 | 2022.7.8 | Boyu Powder Coating Co., Ltd | 36000 air volume - bag dust removal equipment |
| 76 | 2022.7.1 | Jiangxi Gaoda Conveyor Machinery Technology Co., Ltd | And bypass contract“ |
| 77 | 2022.6.16 | Jiangxi Baohai Environmental Protection Technology Co., Ltd | Two rotary kiln supporting dust collectors project |
| 78 | 2022.5.21 | Huangshi Xinxing Pipe Industry Co., Ltd | Ironmaking monomer dust removal |
| 79 | 2022.6.6 | Guangdong Hongxing Environmental Protection Technology Co., Ltd | Desulfurization accessories |
| 80 | 2022.3.16 | Hubei Huangmailing Phosphorus Chemical Co., Ltd | PLC controller, module |
| 81 | 2022.5.18 | Daye Xingjin Aluminum Industry Co., Ltd | Dust removal, desulfurization, and denitrification general contracting |
| 82 | 2022.5.6 | Guangdong Jinyu Environmental Technology Co., Ltd | cyclone dust collection |
| 83 | 2022.2.17 | Hubei Zhonghuan Xin Technology Co., Ltd | Water pump, cylinder, installation fee, taxes and fees |
| 84 | 2022.5.19 | Yifeng Huatai Aluminum Industry Co., Ltd | Manufacturing and installation of smoke hoods and pipelines |
| 85 | 2022.5.9 | Hebei Xiongtai Renewable Resources Co., Ltd | Ventilation disc valve, three-stage cylinder“ |
| 86 | 2022.5.7 | Wanzai Zhicheng Industrial Co., Ltd | Railings, steel structure stairs and platforms |
| 87 | 2022.4.14 | Hubei Dajiang Environmental Protection Engineering Technology Co., Ltd | PPS+PTFE coated filter bag+labor cost |
| 88 | 2022.3.8 | China Fifteen Metallurgical Construction Group Co., Ltd | Single machine bag filter |
| 89 | 2022.2.28 | Hubei Rongcheng Environmental Protection Technology Co., Ltd | 400000 tons of high-purity |
| 90 | 2022.2.22 | Huangshi Lingang Supply Chain Management Co., Ltd | Environmentally friendly brick cutting machine for cathode copper clean production project“ |
| 91 | 2022.2.14 | Guangdong Hongxing Environmental Protection Technology Co., Ltd | supplemental contract |
| 92 | 2021.12.27 | Jiangyou Teli New Materials Co., Ltd | Environmental dust removal equipment |
| 93 | 2021.12.23 | Chenjiashan Mining Co., Ltd., Daye City | Pulse valve accessories |
| 94 | 2021.12.22 | Wanzai Zhicheng Industrial Co., Ltd | Dust removal system repair |
| 95 | 2021.12.17 | Hubei Rongcheng Environmental Protection Technology | packing layer |
| 96 | 2021.12.13 | Guangzhou Guangleng Huaxu Refrigeration and Air Conditioning Industrial Co., Ltd | 5 ㎡/6 ㎡ Lead Smelting Furnace Pulse Bag Dust Collector Equipment |
| 97 | 2021.12.8 | Jiangxi Guoxuan New Energy Technology Co., Ltd | Wet electric shell production |
| 98 | 2021.12.7 | Shaoguan Pengrui Environmental Protection Technology Co., Ltd | Supply of environmental protection facilities for the new factory area project |
| 99 | 2021.11.17 | Guangdong Jinyu Environmental Technology Co., Ltd | Bag dust removal |
| 100 | 2021.11.15 | Hebei Xiongtai Renewable Resources Co., Ltd | instrumentation |