March 22 (Reuters) - Skyworth Digital Co Ltd:
* SAYS 2017 NET PROFIT DOWN 80.6 PERCENT Y/Y FROM 486.4 MILLION YUAN ($76.93 million) YEAR AGO
* SAYS SHENZHEN UNIT PLANS TO INVEST 1.0 BILLION YUAN TO SET UP TECH FIRM IN GUANGZHOU Source text in Chinese: bit.ly/2GSaL2n; bit.ly/2FYtrwd Further company coverage: ($1 = 6.3230 Chinese yuan renminbi) (Reporting by Hong Kong newsroom)