YY [YY] SC 13G: CUSIP NO. 98426T106 1. NAMES OF EPORTING ERSONS
[CUSIP NO. 98426T106 1. NAMES OF EPORTING ERSONS Favor Star Limited 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ¨ (b) ¨ 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION British Virgin Islands NUMBER OF SHARES BENEFICIALLY OWNED BY E A CH REPORTING PERSON WITH 5.]