POSC isn't the same as many penny stocks. They produce API-SR82. Very few do this (US Government & Nordion being the only others in the world). API-SR82 is in short supply, so there is a market for it. They have the patented rubidium generator recycling technology to recover SR82 from spent generators, further increasing supply. Many other pluses.
MTH4's recent post comparing POSC to another penny stock got me wondering if any other OTC companies will be at ASNC. Tried to do a quick check of the public companies that will be there and their stock prices as of today:
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