GlobalWafers Co shares tumbled 9.51 percent yesterday as bigger rival SUMCO Corpfs newly unveiled capacity expansion plan gave jitters to cautious investors.

GlobalWafers, the worldfs No. 3 semiconductor silicon wafer supplier, saw its shares take a nosedive to NT$242.5 yesterday, eclipsing the companyfs strong financial performance in the first half this year.

SUMCO on Monday said that it planned to invest 43.6 billion (US$396 million) on building a new 12-inch wafer fab in Japan to help mitigate supply constraints.

The Japanese company expects the new fab to start operation in the first half of 2019, which should help SUMCO add 110,000 12-inch silicon wafers a month to its existing capacity, according to a company statement posted on its Web site.

gWe expect the impact will not be significant as the industry is entering its esupercycle,fh GlobalWafers vice president Lee Chung-wei (—›’ˆÌ) said by telephone.

gInvestors have overreacted [to SUMCOfs expansion plan],h he said.

The capacity increase from SUMCO accounts for merely 2 percent of market demand for 5.5 million 12-inch wafers per month, Lee said.

gAt present, market demand greatly exceeds supply, which we have not seen in more than a decade. Our capacity is fully booked even for next year,h Lee said.

SUMCOfs announcement also weighed on shares of GlobalWafersf local peers Formosa SUMCO Technology Corp (‘ä‘YŸ‚‰È‹Z) and Wafers Corp (‡»‰È‹Z), which saw their stock prices plunge 3.16 percent and 4.21 percent to NT$92 and NT$20.5 respectively.

GlobalWafers expects the supply crunch to extend into the next two years due to limited new supply, shrugging off concerns over a potential supply glut due to SUMCOfs new fab.

The worldfs major chipmakers, including Taiwan Semiconductor Manufacturing Co (‘äÏ“d) and Samsung Electronics Co, have announced large-scale capacity expansion plans, as market demand is to increase by 1 million wafers a month by 2019, outgrowing supply, Lee said.

In spite of strong customer demand, GlobalWafers said it is in no rush to build any new plant as its priority is to integrate its resources and capacity with SunEdison Semiconductor Ltd, a US-based silicon wafer maker acquired by GlobalWafers last year.

gMany new 12-inch [finished wafer] production lines will ramp up in the next two to three years worldwide, especially in China, and this kind of booming market will definitely make the [raw] wafer supply much tighter,h GlobalWafers said in a statement on Monday.

Strong demand has helped drive the companyfs net profit in the first half. Net profit soared 1.21 times to NT$1.64 billion (US$54.3 million) in the first two quarters this year, in comparison with NT$740 million in the same period last year, according to the companyfs financial statement.

That translated into earnings per share of NT$4.17, up from NT$2 last year.

By: DocMemory
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