Wuhan General Group (China), Inc. (WUHN: Pink Limited) | Tier Change Fri, Feb 28, 2020 12:00 - Wuhan General Group (China), Inc. ( WUHN : Pink Limited) - Tier Change - The symbol, WUHN, no longer is classified as Pink Current. As of Fri, Feb 28, 2020, WUHN resides in the Pink Limited tier. You may find a complete list of tier changes at otcmarkets.com .