Solar Integrated Roofing Corporation (SIRC: Pink Current) | Tier Change Fri, Oct 23, 2020 12:00 - Solar Integrated Roofing Corporation ( SIRC : Pink Current) - Tier Change - The symbol, SIRC, no longer is classified as Pink Limited. As of Fri, Oct 23, 2020, SIRC resides in the Pink Current tier. You may find a complete list of tier changes at otcmarkets.com .