Kyoto Kaihatsu Kogyo Co., Ltd. (KYKKF: Grey Market) | Symbol Change Thu, Mar 26, 2020 12:00 - Kyoto Kaihatsu Kogyo Co., Ltd. ( KYKKF : Grey Market) - Symbol Change - The symbol, KYKKF, is no longer a valid symbol for Kyoto Kaihatsu Kogyo Co., Ltd.. As of Thu, Mar 26, 2020, the new trading symbol is KKKGF. You may find a complete list of symbol changes at otcmarkets.com .