RONGDA announced the investor relations activity record form stating that PCB photoresists can be divided into wet film photoresists, dry film photoresists, and photosensitive solder mask photoresists. In the field of wet film photoresists, domestic companies have a high market share, accounting for over 90% of domestic market sales, with the company's products accounting for about 50% of the domestic market; in the field of photosensitive solder mask photoresists, Japanese company Sun Chemical holds a leading position with a relatively high market share, accounting for about 50% of domestic market sales, while the company accounts for about 25% of domestic market sales; in the field of dry film photoresists, the dry film photoresist market in mainland China still heavily relies on imports, and the company's dry film photoresists have just entered the market
