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Board & Management

Founder & Chairman 

Dr. Koroush Tahmasbi

Managing Director at PDFNK

Dr. Farshad Alasvand

Vice Chairman

Arash Tahmasbi

Technical Deputy

Dr. Mojtaba
Kalhor

Drilling Waste Management Services Manager

Mahyar Kalhor

Procurement & Logistics Manager

Esmail Ghanbari

Finance Manager

Azim Bagheri

Quality Control & Laboratory Supervisor

Maryam Nemati
Kish Offshore Base & Barite Bulk Plant Manager
Davoud Faraji

HSE & Sustainability

Dr. Koroush Tahmasbi

Chairman of the Board

Born in 1965 in Masjed Soleiman, where the first oil well in the Middle East was discovered, Dr. Tahmasbi obtained his PhD in Chemical Engineering from Imperial College University of London.
He founded Pars Drilling Fluids in 2003 to bring cutting-edge science & technology to the drilling fluids industry of Iran.
Dr. Tahmasbi has been actively leading PDF as the Chairman since the inception of the company.

Dr. Farshad Alasvand

Managing Director at PDFNK

Dr. Farshad Alasvand With a multidisciplinary background spanning finance, management, and the petroleum industry, Dr. Alasvand holds a Ph.D. in Financial Management, master’s degrees in Financial Management and Operations & Production Management, and bachelor’s degrees in Petroleum Engineering and Accounting.
Alongside his academic career as a university lecturer in Public Finance, he has held senior positions within Iran’s Ministry of Economic Affairs and Finance, with extensive experience in tax administration, parliamentary affairs, professional qualification adjudication, and judicial financial expertise.
Dr. Alasvand serves as the Managing Director of PDFNK, bringing together his financial, managerial, and petroleum-sector expertise to lead the company’s operations and strategic development.

Arash Tahmasbi

Vice Chairman

Mr. Arash Tahmasbi obtained his MA in Supply Chain Management from Cass Business School of London. Since then, he has been operating as vice chairman of the board and director of marketing.
Mr. Tahmasbi has recently took on the job as Deputy of Systems and Corporate Development for PDF Co.

Dr. Mojtaba Kalhor

Technical Deputy

Dr. Mojtaba Kalhor Mohammadi is the Technical deputy at Pars Drilling Fluids, with an MSc in Petroleum Well Engineering from Curtin University, Australia, and a PhD in Well Production Enhancement Technology.

With over 20 years of experience, he has held technical, operations, engineering, and R&D management roles, following early positions at Baker Hughes Fluid & Environmental Services and NIOC Exploration. His expertise spans high-performance drilling fluids, drilling waste management, formation damage, and production enhancement technologies.

An active SPE member since 2003, Mojtaba has authored and co-authored numerous technical papers and, since 2016, has served as a Technical Committee Member and Co-Chair for Drilling Fluids, Wellbore Stability, and Environmental Services at APOGC.

Mahyar Kalhor

Drilling Fluids Waste Management Services Manager

With over 15 years of professional experience across the upstream oil and gas and environmental sectors, Mr. Kalhor currently serves as Head of Drilling Waste Management at Pars Drilling Fluids.

He holds a Master’s degree in Environmental Engineering and an MBA, with extensive expertise in drilling waste management, water and wastewater treatment, process optimization, and project management.

Esmail Ghanbari

Procurement & Logistics Manager

Mr. Esmail Ghanbari is responsible for overseeing the procurement and supply of materials required for the company’s projects, as well as managing its logistics base and warehouse operations in Ahvaz.

In addition, he supervises the production of specialty chemicals at PDF Co.’s manufacturing facility located in the Zavieh Industrial Zone.

Esmail has been with PDF Co. since 2009 and continues to be a key manager in our procurement for operational support.

Azim Bagheri

Finance Manager

Mr. Azim Bagheri joined Pars Drilling Fluids in 2012 and has since continued his professional career in financial management. Throughout his tenure, he has been involved in budget planning and control, contracts, liquidity and resource management, and risk assessment.

Maryam Nemati

Quality Control & Laboratory Supervisor

Mrs. Maryam Nemati has an MSc in Analytical Chemistry with over 15 years of specialized experience in drilling fluids, laboratory operations, and chemical analysis. She has been responsible for managing PDF laboratories in Tehran and Ahvaz since 2011.
Her expertise includes drilling fluid testing and performance evaluation, quality control, chemical analysis, laboratory management, and ensuring compliance with technical and operational standards. 

Davoud Faraji

Kish Offshore Base & Barite Bulk Plant Manager
Mr. Davoud Faraji has been responsible for managing PDF’s Offshore base and Barite bulk plant in Kish Island, which is a key asset in fulfilling the company’s commitments in field such as South Pars.

Mr. Faraji has been with PDF Co. since 2013.