Why do international brands frequently practice price discrimination against China?

Cause of the event: Exorbitant profits from sales in the domestic market by international brands are being questioned. Sharp, which has obviously become accustomed to being the focus of attention, has recently become the main character in an industry storm. Due to its dissatisfaction with Gome's unauthorized reduction of the price of its 65-inch LCD TV LC-65RX1W, originally priced at RMB 130,000, by RMB 30,000, Sharp protested against Gome and announced a supply cut-off. However, this LCD TV, which has been on the market for one and a half years, is sold in Japan for only about RMB 50,000 to 60,000. The stark contrast has once again ignited a wave of questioning from the industry and even ordinary consumers regarding the high-priced sales of international brands in the domestic market.