REUTERS/Florence Lo/Illustration/File Photo Acquire Licensing RightsSEOUL, Sept 22 (Reuters) - South Korea on Friday said it has asked the United States to resolve uncertainties regarding U.S. export controls in the chip sector and subsidies for chip investment. The waiver allowed the South Korean pair to supply equipment for their chip production facilities in China without additional licensing requirements. Bang has sought "active cooperation" from the U.S. Department of Commerce to resolve issues relating to export controls, South Korea's Ministry of Trade, Industry and Energy said in a statement without elaborating. Samsung Electronics has NAND flash memory production in Xian, China whereas SK Hynix has DRAM chip production in Wuxi and NAND Flash production in Dalian. The companies together control nearly 70% of global DRAM and 50% of NAND flash markets as at June-end, showed data from TrendForce.

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Persons: Florence Lo, Commerce Don Graves, Bang, Joyce Lee, Heekyong Yang, Christopher Cushing Organizations: REUTERS, Rights, Industry, U.S, Commerce, Samsung Electronics, SK Hynix, U.S . Department of Commerce, Korea's Ministry of Trade, Energy, TrendForce, Samsung, Thomson Locations: Rights SEOUL, South Korea, United States, Seoul, China, U.S, Korea's, Xian , China, Wuxi, Dalian, Texas