| Langfang Wanhui Thermal Insulation Materials Co., Ltd | 2024-02-19 | Mineral Wool Sound-Absorbing Board, Perlite Board, Aluminum Silicate Tube | 1000K CNY | Desteklenmiyor |
| Langfang Paiheng Energy saving Technology Co., Ltd | 2023-05-16 | Mineral Wool Sound-Absorbing Board, Silicon Rock Slab, Foam Glass Insulation Board | 3000K CNY | Destekleniyor |
| Beijing Yilong Weiye Building Materials Co., Ltd | 2011-09-21 | Mineral Wool Sound-Absorbing Board, Calcium Silicate Board, Micro Porous Calcium Silicate Board | 1000K CNY | Desteklenmiyor |
| Nanjing Shengshi Haofa Construction Engineering Co., Ltd | 2019-11-29 | Mineral Wool Sound-Absorbing Board, Elevator Shaft Sound-Absorbing Panel, Computer Room Mineral Wool Sound-Absorbing Board | 5000K CNY | Desteklenmiyor |
| Sichuan Jinggong Environmental Governance Co., Ltd | 2014-04-21 | Mineral Wool Sound-Absorbing Board, Acoustic Panel, Fan Soundproof Enclosure | 30000K CNY | Destekleniyor |
| Guangdong Liyin Acoustic Technology Co., Ltd | 2006-03-17 | Mineral Wool Sound-Absorbing Board, Wooden Perforated Flame Retardant Board, Perforated Flame Retardant Board Made Of Slotted Wood | 10000K CNY | Desteklenmiyor |
| Langfang Wanao Energy saving Technology Co., Ltd | 2020-07-30 | Mineral Wool Sound-Absorbing Board, Jin Haiyan Glass Wool Board, Owens Corning Rock Wool Board | 500K CNY | Desteklenmiyor |
| Langfang Zongbu Energy saving Technology Co., Ltd | 2021-07-12 | Mineral Wool Sound-Absorbing Board, Floor Heating, Eva | 2000K CNY | Desteklenmiyor |
| Langfang Jianzhong Energy saving Technology Co., Ltd | 2025-02-28 | Mineral Wool Sound-Absorbing Board, Rock Wool Board, Damping Soundproof Board | 500K CNY | Desteklenmiyor |
| Chengdu Chencong Decoration Materials Co., Ltd | 2018-04-10 | Mineral Wool Sound-Absorbing Board, Acoustic Panel, Perforated Gypsum Sound-Absorbing Board | 1000K CNY | Destekleniyor |