The contractor has submitted copy of contract agreement between various buyers and M/s Zhe Jiang Yi Wu Star Shine Fans where as approval is sought for a different vendor. Contractor has to submit contract agreement between end users and the vendor for whom approval is sought regarding supply of ID/ FD fans. In addition Contractor also has to submit the reference list of industries where the equipment of the particular make has been supplied and is in use for last 2 years along with certificate from end users regarding satisfactory performance atleast one year.