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 The Petrochemical Auditing & Management Services Company (HESSAM) was established
on August 10, 1995. Pursuant to the provisions and criteria laid down by Iranian Association
of Certified Public Accountants, HESSAM partners subsequently established “DAYARAYAN”

Auditing & Financial Services Firm. 

As mentioned above explanation,  “DAYARAYAN” was established to satisfy the equirement

laid down by Iranian Association of Certified Public Accountants, and since no change has

been effected in the combination of the directors, managers, and employees of HESSAM,

DAYARAYAN’s years of professional service dates back to that of  HESSAM.

 “DAYARAYAN” has been recognized as a certified auditing firm by the Tehran Stock

Exchange.  More than 172  local and foreign clients are benefiting from its services.