SEOUL — The chief executive of South Korean defense contractor LIG Defense & Aerospace Co. (LIG D&A) on Monday denied the company's involvement in a bribery scandal tied to weapons procurement tenders, telling a parliamentary committee that internal controls would have prevented the alleged payments. Appearing as a witness before the National Assembly's defense committee, CEO Shin Ick-hyun said two company executives indicted on charges of bribing an official at the Defense Acquisition Program Administration (DAPA) have maintained their innocence. Asked whether the company knew about the alleged payment of 300 million won (approximately $226,700), Shin replied, "It is structurally impossible for the company to raise such an amount through its internal procedures," according to the Korea Times and Yonhap…