The ESC Steel Philippines Team

ESC's engineers are experienced in numerous fields, with the end-result being a diverse, innovative and experienced team to provide you, the client,  with a combination of high-quality, innovative, economical and efficient solutions. Presented are some of the our staff engineers located around the world.

John Luis Yeates, (MEng, CAPM)

John graduated in 2010 with a 1st Class Honours Degree in MEng Aeronautical Engineering from Imperial College London. John has worked in several industries, including oil & gas, construction and manufacturing. John's key skills include Manufacturing Engineering, Mechanical and Hydraulic Engineering, Finite Element Analysis, Composite Structures and Project Management.

Country Manager

Ronald Luis - President

Ronald Luis has been working in the ESC Group for over 8 years, starting out as the Factory Manager in the ESC Malaysia Factory. Ronald relocated to the Philippines in 2015 and has founded ESC Steel Philippines with its strong overseas support from ESC Group.

Raffy Manansala

Raffy is an experienced Business Development and Sales professional including strategy management in Construction, Real Estate, Food Industry and Fuel Trading company locally and internationally. He brings more than 10 years of extensive experience in local and international clients plus various commercial segments in negotiation management. He held supervisory and managerial positions within Regency Group Holding (Al Asmakh Group Qatar), Mercury Group Holding (Food Group Manila) and recently in Aboitiz Group (Real Estate & Construction Cebu).


At Regency Group & Aboitiz Group, held key managerial positions on the local & international clients in Strategy Management (Business Continuity Management, Safety & Risk Management) and Business Development & sales teams. He help Aboitiz Construction in securing significant project with international steel fabrication (Heaters & Furnace) worth of around 2M USD in Canada as one of the key milestone during his stint. Also, he also increase revenue on the Power & Energy Sector in the construction group of Aboitiz.


Raffy holds an Bachelors of Arts in Management – Major in Industrial Engineering (CHED Accredited as BSIE) in Technological University of the Philippines – TUP Manila Main. He graduated his Bachelor’s degree as Cum Laude.

Business Development & Sales Manager

Jerry Marte

Jerry graduated at Cebu Institute of Technology-University, where he was a consistent Dean's Lister and he was also one of the Top 10 Mathematician of the Year. He was a Board Topnotcher (4th Placer) on the November 2015 Philippine Civil Engineering Board Exam.

His work experience revolves around engineering design and construction. He is a licensed Civil Engineer with 3 years of experience under his belt under Makati Development Corporation (one of the biggest vertical contractors in Philippiness) as a Field and Civil Engineer and National Grid Power Corporation as a Civil Design/Cost Engineer– for construction of mid rise infrastructures, transmission towers and all associated foundation components.

Civil Design & Technical Sales Engineer

Xavier Sol Villacrucis

Xavier Sol is a Chemical Engineer by profession who has extensive experience of 24 years in Philippine Construction Industry as a Business Development Officer, Technical Service Engineer, and Sales and Marketing Executive. He has been a service provider to various professionals especially Architects and Engineers, Companies, and Organizations such as the United Architects of the Philippines (UAP), Philippine Institute of Civil Engineers (PICE), Housing Developers, Local Government Sectors, and the Department of Public Works and Highways (DPWH).

He has a very wide knowledge in Construction Materials such as paint, wood, cement boards, steel structures, adhesives, and more.

Senior Sales Engineer

John Carlos Critica (IE)

John Carlos is a licensed Mechanical Engineer (2016) and Master Plumber (2017). He finished Masters of Science in Industrial Engineering Management Major in Industrial Marketing in 2019. He graduated in 2016 with a Degree in Bachelor of Science in Mechanical Engineering at Polytechnic University of the Philippines.

As a professional, he has been working for three (3) years as Sales Engineer with the oldest spiral pipe Producer in the Philippines.

Sales Engineer

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