Rorine International Holding Corp. (RIHC: Grey Market) | Tier Change Fri, Sep 04, 2020 12:00 - Rorine International Holding Corp. ( RIHC : Grey Market) - Tier Change - The symbol, RIHC, no longer is classified as Pink No Information. As of Fri, Sep 04, 2020, RIHC resides in the Grey Market tier. You may find a complete list of tier changes at otcmarkets.com .