SDI 

SDI Corporation, operating with its various subsidiaries, is involved in the production and distribution of a diverse array of goods. These offerings include lead frames for semiconductors and LEDs, various stationery and office supplies, and precision dies. The company's market presence spans Taiwan, China, Japan, Malaysia, and other international regions. Beyond its manufacturing operations, SDI also participates in the refining and rolling of metal strips, supplies electronic components, and conducts global trading activities. The company was founded in 1953 and has its main office located in Changhua, Taiwan.