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It is reported that Jingmei had to implement unpaid leave to alleviate the company's operating pressure, mainly because the company's customers are mostly concentrated in the mainland. Since the mainland's LED subsidy card and LED yield are generally not high, Sanan Optoelectronics subsequently stopped to enter the LED equipment. And its demand in the mainland sapphire substrate market is freezing.
In addition, South Korea's Changjing and substrate manufacturers STC dumped sapphire substrates to the mainland market, making Jingmei's revenue from NT$300 million in May this year slipped to RMB 33.32 million in October, with a decline of nearly 88. %.
As for other sapphire substrate factories, Zhaoyuan, Zhaojing and Hejingguang said that they will not consider the implementation of unpaid leave for the time being. The company will save money by reducing market expenses and administrative management. Among them, Hejingguang is relatively less pressured due to smaller scale. Big factory is easy. 
[High-tech LED News] Recently, Taiwan's industry broke the upstream sapphire substrate factory Jingmei launched the unpaid leave system in November. In this regard, Jingmei said that it had notified the competent authorities in October, and implemented a five-day unpaid leave every month from November. In the future, depending on the demand for the industry, we will adjust whether the follow-up will continue to be unpaid or reduced.