Four-leaf clover was introduced by PGI Platinum Association in 2007. It's called Happy Four-leaf Clover Series.

It's normal that the landlord can't find it in official website, so don't worry too much. Because this product was promoted by Platinum Association and not designed by Chow Tai Fook himself, many famous brands also sell it. [Platinum Association also has authorization, such as Zhou Shengsheng]

So they didn't promote it online. In official website, most of them are proprietary products designed by themselves.

In 2006, the spokesperson of Platinum Association was Maggie Cheung, and in 2007, the spokesperson was replaced by Zhang Ziyi.