exhibit 10. 5 [ * ] certain information in this document has been omitted and filed separately with the securities and exchange commission. confidential treatment has been requested with respect to the omitted portions. collaborative research and license agreement july 10, 2009 table of contents article 1 definitions “ affiliate ” “ arbitral tribunal ” “ arbitration authority ” “ arbitration list ” “ background technology ” “ biocatalyst ” “ biocatalyst technology ” “ biofuel process technology ” “ biomass ” “ blend ” “ breaching party ” “ [ * ] ” “ [ * ] ” “ [ * ] ” “ calendar year ” “ claim notice ” “ codexis background technology ” “ codexis biocatalyst ” “ codexis - [ * ] agreement ” “ codexis introduced program technology ” “ codexis jointly invented research technology ” “ codexis research technology ” “ codexis screening technology ” “ codexis shuffling technology ” “ codexis solely invented research technology ” “ commercial improvements ” “ confidential information ” “ control ” “ covenanting party ” “ default notice ” “ disputing party ” “ [ * ] party ” “ environmental law ” “ fuels field ” “ hazardous materials ” “ information ” “ ie background technology ” “ ie biofuel process technology ” “ ie research technology ” “ ie introduced program technology ” “ ie jointly invented research technology ” [ * ] certain information in this document has been omitted and filed separately with the securities and exchange commission. confidential treatment has been requested with respect to the omitted portions. - i - “ ie solely invented research technology ” “ international trade laws ” “ introduced program technology ” “ jointly owned research technology ” “ losses ” “ lubricant ” “ microbes ” “ non - breaching party ” “ notice to arbitrate ” “ out - sourcing party ” “ oversight committee ” “ patent committee ” “ patent rights ” “ permitted products ” “ program ” “ research plan ” “ research technology ” “ research term ” “ rules ” “ shell agreements ” “ shell biofuel technology ” “ shell research technology ” “ shuffling ” “ shuffling technology ” “ technology ” “ term ” “ third party ” “ third party agreements ” “ [ * ] ” article 2 program activities purpose oversight committee contributions and information sharing reports and materials laboratory facility and personnel efforts acknowledgement and waiver article 3 ownership of technology codexis background and codexis introduced program technology ie background and ie introduced program technology codexis research technology ie research technology shell research technology jointly owned research technology