Aiming to become the global leader in chip-scale photonic solutions by deploying Optical Interposer technology to enable the seamless integration of electronics and photonics for a broad range of vertical market applications

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PTK gets pumped up to .50 cents , then dumped down to .45 time after time. It looks to me like it would not matter too much which exchange it is on any more.. There was a lot of big talk how from the company how they would be promoting itself in the US... and investors would buying shares... So far ,,,ZIPPO !!!!! Too much talk,,as far as I am concerned and not enough action !!!!

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