Baiya Sanitary Products [SHE: 003006] and Winner Medical [SHE: 300888] tumbled 10% and 4.3%, respectively, as of 11.15 a.m. today after receiving regulatory letters from the Shenzhen bourse regarding their supply relations with a Shandong manufacturer exposed on the CCTV 315 gala's name-and-shame list for recycling discarded materials and making refurbished sanitary pads and diapers.