ZST Digital Networks, Inc. (Nasdaq:ZSTN) a major developer, manufacturer and supplier of digital and optical network equipment to cable system operators and provider of GPS tracking devices and support services for transport-related enterprises in China, has signed a Letter of Intent with EarthSearch Communications International, Inc. (”EarthSearch”), a subsidiary of East Coast Diversified Corporation as the basis for further discussion regarding the terms and conditions that may apply in a formal agreement to be executed between both parties in the future.

ZST Digital Networks, Inc. is a China-based company, principally engaged in (1) supplying digital and optical network equipment and providing installation services to cable system operators in China and (2) providing GPS location and tracking services to local logistics and transportation companies in China.

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American Video Teleconferencing Corp. (AVOT)

Europium, ytterbium, and Terbium are used in optical systems as a glass ‘doping agent’ for lasers, and other systems. These products are essential for night vision, heads up displays in fighter jets, laser systems such as guided weapons and laser targeting systems, and fiber optic cables. SONAR and RADAR systems, satellite communications also rely on rare earths. Even nuclear threat detection systems use lanthanum to detect gamma radiation.

To substitute other materials is not an option in most of these technologies. This is due to the unique properties of rare earths. In order to substitute some of the materials, whole systems would have to be re-engineered, made larger, and most likely less efficient.

American Video Teleconferencing Corp. believes the rare earths industry is where it wants to maintain a very strong focus and is looking to expand its holdings. AVOT is normally known for its business and efforts of exploration in Rare Earth Elements.

According to the Company, it aggressively continues to search world-wide for opportunities in Precious, Base and Rare Earths metal projects in its future strategies.

American Video Teleconferencing Corp. (AVOT) recently announced that Wayne Lockhart, BSc. Geology, has joined the company as special geological advisor to AVOT for advancing the company’s exploration programs on its newly acquired rare earth property in Quebec. Mr. Lockhart has over 35 years experience in the mining business having worked for Falconbridge and Phelps Dodge in eastern Canada, Anglo American Corp.(DeBeers) in Africa and Benguet Cons. in the Philippines.

Mr. Lockhart in addition to being a lecturer at the University of New Brunswick in Geology has developed programs for the United Nations (UNDP). Mr. Lockhart is an Honorary Director of the Prospector and Developers Association of Canada (PDAC), a founding and former member of the Association of Exploration Geochemists and a Member of the Society of Economic Geologists.

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Cleantech Transit, Inc. (CLNO)

The term biomass is a sweeping one, but, in essence, biomass is plant matter containing stored solar energy. Biomass energy can be released by incinerating plant material. Fossil fuels were formed from organisms that died millions of years ago and are therefore not replenishable. But because biomass derives from plant material, vegetation, agricultural waste, or wood processing byproduct, it can always be renewed. Of course, biomass harvesters who are committed to sustainable practices replant trees to speed up the restoration process, whereas other practices can make biomass energy far less sustainable.

Cleantech Transit Inc. was founded to capitalize on technology advances and manufacturing opportunities in the growing clean energy public transportation sector. The Company has expanded its focus to invest directly in specific green projects. Recognizing the many economic and operational advances of converting wood waste into renewable sources of energy, Cleantech has selected to invest in Phoenix Energy (www.phoenixenergy.net). This project can generate shareholder returns as well benefit the Company’s manufacturing clients worldwide. Cleantech Transit Inc. is in the business of producing and conserving power. It produces and sells clean electricity globally, with a focus on sustainable energies using renewable resources such as Geothermal, Solar and Wind.

Cleantech Transit Inc. is pleased to provide additional details after achieving success on the 500 KW facility and successfully moving past the interconnection testing stage.

Coming on the recent success at the 500KW facility in Merced, California this poises Phoenix Energy to become a leading developer of renewable biomass distributed generation plants that utilize local resources for local energy.

Currently there are two additional projects being pre-certified by Phoenix Energy in California. The projects are each projected to be 1 MW biomass gasification facilities that will provide both electricity and process heat energy. Each facility will provide enough electricity to power approximately 800 homes as well as process heat to be used in drying agricultural products. The projects are expected to complete by the end of 2012.

Cleantech will be providing details on the expecting closing date of its initial investment into Phoenix Energy in the coming weeks.

For more information, visit www.cleantechtransitinc.com.

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AirMedia Group Inc. (Nasdaq:AMCN) a leading operator of out-of-home advertising platforms in China targeting mid-to-high-end consumers, announced that its chairman and chief executive officer, Herman Guo, has made purchases of US$1,063,293 of the Company’s American Depositary Shares (ADSs) from the public market during the period from May 26 to June 8. The purchases were made under the account of Mr. Guo’s wife. Mr. Guo, who is the founder and largest shareholder of AirMedia, purchased a total of 299,524 ADSs at an average price of US$3.55 per ADS, with an approximate value of US$1,063,293. Each ADS represents two ordinary shares and is traded on the Nasdaq Global Exchange.

AirMedia Group Inc. is a leading operator of out-of-home advertising platforms in China targeting mid-to-high-end consumers. AirMedia operates the largest digital media network in China dedicated to air travel advertising. AirMedia operates digital frames in 35 major airports and digital TV screens in 37 major airports, including most of the 30 largest airports in China.

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Navigators Group Inc. (Nasdaq:NAVG) announced that Stan Galanski, President and Chief Executive Officer, and Frank McDonnell, Senior Vice President and Chief Financial Officer, will participate at the Macquarie Capital (USA) Inc. Small- & Mid-Cap Conference being held at the Le Parker Meridien Hotel in New York City on Tuesday, June 14. The panel discussion begins at 9:45 a.m. (ET).

The Navigators Group, Inc., an international insurance holding company, engages in the underwriting and management of property and casualty insurance in the United States, the United Kingdom, Belgium, and Sweden.

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