Exterior view of the headquarters

RYMOIL S.A.,owned by de asturian group IMASA, was constituted as Public Limited Company on February 25, 1984.

Our concern has always been the knowledge and the application of new maintenance techniques, acting in the fields of treatment of dielectric fluids and PCB management and engineering and soil decontamination.

We have R+D+i department, in collaboration with Spanish and foreign universities. We are part of the Working Group UNESA that elaborates UNE regulations and we participate in international conferences.

This information and experience allows us to build and design our own treatment equipments.


Presently RYMOL, S.A. activities are the ones listed below:

  • Laboratory of transformers oils and contaminated soils.
  • “In situ” reclaiming and maintenance of transformers oils.
  • “In situ” decontamination of PCB transformers oil.
  • Management and treatment of contaminated soils.
  • PCB management.


RYMOIL S.A. is Manager of hazardous and non-hazardous wastes for the activities listed above and can remove and manage all processes wastes.

RYMOIL S.A. has the environmental authorizations A-33053562/AS/VP and A-33053562/AS/VP2 and REA inscription with nº 03/33/0005585, all of them issued by Principado de Asturias, Spain.


Nuestros objetivos se fundamentan en tres pilares:


All our actions are endorsed by ENAC accreditation of our PCB laboratory, certifications ISO 9001 and 14001.

  • ISO 9001 / ISO 14001 - Bureau Veritas Certification
  • ENAC - Ensayo ISO 17025 nº602 / LE1229

Staff Training

Our staff makes periodic recycling of training on the latest techniques to be applied and analytical laboratory control.

Sala de formación y vídeoconferencia Training room

Techniques and Guarantees

All our techniques and equipment are part of a proprietary development of R+D+i and collaboration of specialized companies and research universities

Application Areas

RYMOIL S.A.activity covers practically all industrial sectors that have a transformer or by an accident, contaminating their land.

  • Energy
  • Iron and Steel Industry
  • Chemical
  • Petrochemical
  • Navy Industry
  • Comunications
  • Mechanics construction
  • Automotive Industry
  • Mining
  • Cement¡
  • Environment
  • Public services


Our best references are our customers.

RYMOIL S.A. has numerous references of works made in Spanish and foreign companies in the different treatments and applications. Please ask for them and kindly we will send you the required information.