 Veteran CEO of Nasdaq Listed Semiconductor Company to Drive Subsidiary Expansion EL CAJON, CA ACCESSWIRE October 19, 2021 Solar Integrated Roofing Corp. OTC PINK:SIRC, an integrated, single-source solar power and roofing systems installation company, today announced that it has appointed Dr. Philip Yin as Chief Operating Officer of SIRC subsidiary, USA Solar Networks. Dr. Yin brings over 30 years of executive management experience to USA Solar Networks. 