| Company | TZCLU PIPES LLC |
| Business Number | 7009343 |
| Company | WANHUI ROOFING LLC |
| Business Number | 7011443 |
| Company | JIZENG ROOFING INC. |
| Business Number | 7015792 |
| Company | YANGB ROOFING INC. |
| Business Number | 7015793 |
| Company | HUAZEN ROOFING INC. |
| Business Number | 7015795 |