Notes: June 9, 2020 Tecogen Inc. (NASDAQ:TGEN), a clean energy company providing ultra-efficient and clean on-site power, heating and cooling equipment, announced that it will file a Form 25 with the Securities and Exchange Commission on June 9, 2020 to notify the SEC of the voluntary delisting of its shares of common stock from Nasdaq. As previously announced, Tecogen is transitioning the quotation of its shares to OTC Markets Group Inc.'s OTCQX Best Market. Tecogen shares are expected to be quoted on the OTCQX Best Market on or about June 19, 2020, following its voluntary delisting from Nasdaq Capital Markets which will be effective June 19, 2020. Trading of Tecogen shares on Nasdaq will be temporarily suspended for trading on Nasdaq on June 9, 2020 and will resume trading on Nasdaq during the period June 10 through June 18, 2020 until the delisting from Nasdaq becomes effective. <p>Nov 2, 2016 -- Tecogen Inc. (NASDAQ: TGEN) ("Tecogen") and American DG Energy Inc. (NYSE MKT: ADGE) ("American DG") today announced that their Boards of Directors unanimously approved a definitive agreement under which Tecogen will acquire all of the outstanding shares of American DG in a stock-for-stock merger. Each share of American DG common stock will be exchanged for 0.092 shares of Tecogen common stock, valuing American DG at an approximately 27% premium to the company's most recent closing share price. The transaction creates a vertically integrated clean technology company able to offer equipment design, manufacturing, installation, financing, and long term maintenance service. The combined company will retain the Tecogen Inc. name and be led by Co-Chief Executive Officers John Hatsopoulos and Benjamin Locke.