ZK International Announces Option Trading Now Available for the Company News provided by Share this article . (Nasdaq: ZKIN) ("ZKIN", "ZK International") is pleased to announce that there is now options trading available on the Company. The options listing provides additional means to invest in the Company, providing investors with alternative ways to invest in the Company. About ZK International Group Co., Ltd. ZK International Group Co., Ltd. is a China-based engineering company building and investing in innovative technologies for the modern world. With a focus on designing and implementing next-generation solutions through industrial, environmental and software engineering, ZKIN owns 28 patents, 21 trademarks, 2 Technical Achievement Awards, and 10 National and Industry Standard Awards.