Yen Heng
| Business category 1 | Recycling |
| City ( of main office ) | Hong Kong, HK, Hong Kong |
| Address | Tsimshatsui |
| Phones | 852-98693000 |
| Date | 2011 Oct 29, 11:10 |
| Business category 1 | Recycling |
| City ( of main office ) | Hong Kong, HK, Hong Kong |
| Address | Tsimshatsui |
| Phones | 852-98693000 |
| Date | 2011 Oct 29, 11:10 |