| Certificate |
| Winstand Precast Concrete Factory & Building Materials Trading Ltd. (PC004) |
| 深圳四村科威建材制品有限責任公司 (PC005) |
| Macau Concrete Company Limited (Ka-Ho - PC006) |
| Fosroc Hong Kong Limited (PC009B) |
| China Harbour Engineering Company Limited (1602 - PC023) |
| Score Building Materials Limited |
| Score Building Materials Limited |
| Score Building Materials Limited (PC038) |
| Jian Zheng Building Material Manufacturer of Zhongshan City Wing Hong Shun (PC059) |
| Kwong Yin Wing Koo Timber Company Limited (PC669) |
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| Best Cheer Architectural Precast System Ltd. (PC338) |
| Score Building Materials Limited (PC609) |
| Milan (HK) Limited |
| ScoreTech Mortars Co., Ltd. (PCS/SC - PC889A) |
| ScoreTech Mortars Co., Ltd. (PCS/SC - PC889B) |
| ScoreTech Mortars Co., Ltd. (PCS/SC - PC889C) |
| Man Fai Tai (Macau) Limited |
| 深圳市福盈混凝土有限公司 (PC998) |
| Macau Concrete Company Limited (Pac-On - PC007) |
| Nippon Hume Concrete (HK) Ltd. (PC008) |
| Fosroc Hong Kong Limited (PC009) |
| Fosroc Hong Kong Limited (PC009A) |
| Win Excel Ltd (廣東省高要市日月陶陶瓷有限公司 - PC021) |
| Score Building Materials Limited - Yunfu New Diamond (PC228A) |
| Timmax Industrial Limited |
| Ronacrete (Far East) Limited (PC999) |