Aug 17 (Reuters) - Tempo Australia Ltd TPP.AX :
* Tempo secures $50 million in contract extensions
* Says has secured new contract extension variations
* Says Tempo construction and maintenance has received a further extension to its existing contract with Rio Tinto (LONDON:RIO)
* Says the project extensions includes Chevron (NYSE:CVX) operated Gorgon LNG Project
* Says the project extensions also include Rio Tinto Cape Lambert Port B expansion project
* Source text for Eikon ID:nASX28pNxc