Do Not Trade the Following Before Reading On: (OTCBB: ACTC), (OTCBB: CTDT), (OTCBB: GWBU), (OTCBB: IMDS)

New York, NY -- (SBWIRE) -- 07/12/2012 -- New York (July 12th 2012) - Advanced Cell Technology Inc. (OTCBB: ACTC) is gaining in trading today. At last check, ACTC was up 4.95% to $0.0870 on above average volume of 7.54 million. The stock touched an intra-day high of $0.09 today.

ACTC has now gained more than 25% in the last three trading sessions, making it one of the top performers on the OTC market. The stock is still trading well below its 52-week high of $0.09.

Advanced Cell Technology reported that it has received approval for increasing the dosage of RPE for the participating patients in its clinical trial for dry Age Related Macular Degeneration or AMD. The company has received the authorization from the Data and Safety Monitoring Board. The board consists of independent medical experts.

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Centaurus Diamond Technologies Inc. (OTCBB: CTDT) is up sharply in trading currently. At last check, the stock was trading 10.07% higher at $0.295 on volume of 2.31 million. The stock touched an intra-day high of $0.29 today after opening at $0.26.

CTDT has now gained 47.50% in the last three trading sessions. The stock is up more than 197% this week, which makes it one of the best performers on the OTC market for the week. CTDT previously traded under the ticker symbol SWTR.

On Tuesday, CTDT provided details on how diamonds can be made in factories by squeezing carbon in massive presses at high temperature and pressure. The company said that manufactured diamonds have great utility in industrial tools, and also as abrasives.

Earlier in the week, CTDT also announced that FINRA permitted the company to change its name from Sweetwater Resources Inc. to Centaurus Diamond Technologies Inc. The new name better reflects the nature of CTDT’s core business. The company changed its ticker from SWTR to CTDT as a result of the name change.

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Great Wall Builders Ltd. (OTCBB: GWBU) is continuing to slide in trading today. At last check, GWBU was down 8.98% to $0.152 on volume of 2.52 million. The stock fell to an intra-day low of $0.14 today. GWBU has now fallen more than 36% in the last three trading sessions.

GWBU, which owns a patent-pending technology called Start FEED, recently announced the completion of successful testing of Start FEED units with Cooperativa Trasporti di Riolo of Italy, a member of the National League of Cooperatives and Mutual providing tourism and public transportation services.

The field tests conducted by Cooperativa Trasporti di Riolo showed an average 15% fuel savings. As a result, Cooperativa Trasporti di Riolo has now ordered another 100 Start FEED units at a cost of 1,125 euros per unit.

GWBU President and CEO Daniele Brazzi said that the successful testing is another important step for the company in the Italian trucking industry and evidencing the success of Start FEED technology to the global market. Brazzi said that he looks forward to continuing to report to shareholders on the company’s strong business development activities over the coming weeks.

Later this month, GWBU will also hold a shareholder webcast to discuss the recent volatility in the company’s share price.

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Imaging Diagnostic Systems Inc. (OTCBB: IMDS) is extending its gains in trading today. IMDS is currently trading 47.06% higher at $0.0025 on volume of 113.84 million, taking its gains in the last three trading sessions to over 188%.

A filing made by IMDS late last month showed that on June 26, 2012, the company’s Board of Directors accepted the resignation of David Schmidt, a Director at the company since August 1, 2011. Schmidt resigned due to general disagreement with the management and direction of the company.

An earlier filing showed that IMDS had revenue of $163,000 for the quarter ended March 30, 2012, up from $10,000 reported for the quarter ended December 30, 2011. The company had an operating loss of $550,000 for the quarter ended March 30, 2012. This compares with an operating loss of $1.05 million reported for the three-month period ended December 30, 2011. The company’s net loss for the quarter ended March 30, 2012 stood at $316,000, down from $869,000 reported in the previous quarter.

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