Smartphone maker HTC's shares have fallen for two consecutive days after Apple accused the company of infringing Apple patents.
The case may even halt US imports of the Taiwanese company's phones and its new Flyer tablet computers, according to Bloomberg.
Shares fell 6.9% in immediate reaction to news of Apple's patent case and then a further 5.9% the following day to the lowest levels since January.
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The company's legal representatives said HTC continues to deny all of Apple's past and present claims against it and will continue to protect and defend its own intellectual property.
HTC has also told Apple, which is also suing Samsung for allegedly copying Apple product designs, that it should aim to compete instead of resorting to legal action, according to other reports.
HTC's general counsel, Grace Lei, said the company is tired of Apple constantly suing every other smartphone manufacturer and should seek to compete in the market.