"It's good for the company because the growth potential for CD-Rs will be limited in the next few years," said Tsai.
Last week, CMC reported that July sales had fallen 6.6 percent from a month earlier to NT$1.31 billion.
The company is also anticipating earnings per share of NT$6.21 this year and a net income of NT$10 billion.
Last year, the company's net income was NT$7.46 billion, with earnings per share of NT$7.57.
CMC's share price rose 2.34 percent yesterday to NT$65.5.
Its stock turnover of 65.7 million was the third highest in the market and CMC's highest since the middle of June.
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