exhibit 10. 20 confidential treatment requested under c. f. r. sections 200. 80 ( b ) ( 4 ), 200. 83 and 230. 406. [ * ] indicates omitted material that is the subject of a confidential treatment request filed separately with the commission. the omitted material has been filed separately with the commission. sales agreement regarding sale of heavy duty alternate fuel management systems between murphy econtrols technologies ( hangzhou ) co., ltd. and chengdu amico technologies co., ltd. august 29, 2013 1 sales agreement regarding sale of heavy duty alternate fuel management systems this sales agreement regarding sale of heavy duty alternate fuel management systems ( this “ agreement ” ) is made and executed as of the 29th day of august 2013, by and between murphy econtrols technologies ( hangzhou ) co., ltd., a company incorporated under the laws of the people ’ s republic of china ( the “ prc ” or “ china ” ) and having its registered address at 77 23rd street, hangzhou economic & technological area, hangzhou, zhejiang province 310018, the prc ( hereinafter referred to as “ met ” ), and chengdu amico technologies co., ltd., a company organized under the laws of the prc and having its registered address at no. 203 north gangtong rd, pixian industrial zone, chengdu 611743, sichuan province, the prc ( hereinafter referred to as “ amico ” ). whereas, met and enovation controls, llc ( “ enc ” ), met ’ s ultimate parent company, are engaged in the manufacturing of engine controls, and alternate fuel management systems and components ; and whereas, amico is engaged inter alia in the development, engineering and sale of alternate fuel systems in the prc ; and whereas, the parties have agreed to enter into this agreement, subject to obtaining all necessary approvals, permissions, consents, validations, confirmations, licenses and any other authorizations required to set up a cooperation framework in the prc with the main object of development, integration and selling electronic controlled alternate fuel management systems, including but not limited to, cng and lpg electronic system and components for heavy duty engines and other associated and incidental services, to customers in china ; and whereas, the parties are ready, willing and able to cooperate in the manner set out hereinafter, to ensure the establishment and success of such a framework