
Since 1991, in Solferino. An independent compounder.
- Since 1991
- ISO 9001
- Solferino (MN)
- Independent
Three decades as an industrial partner to the leading European chemical and petrochemical groups. No corporate group behind us, full independence in technical decisions, continuity in relationships — many of our clients have been with us for over twenty years.
About us
35 years of proprietary know-how in polymer compounding.
Green Plast has operated since 1991 in Solferino (Mantua, Italy) as an independent compounder, exclusively on a contract manufacturing basis. Three decades of continuous collaboration with the leading European chemical and petrochemical groups have built a body of technical expertise reflected in every stage of our process: from formulation to quality control, from raw material management to logistics.

Our values
What drives us.
Three principles that guide every operational, commercial and technical decision.
- 100%Independent
Independence
We operate as an independent compounder: no group constraints, maximum decision-making flexibility and an approach geared to our clients’ needs.
- 20+Avg client tenure
Long-term partnerships
Our relationships with major chemical groups are measured in decades, not quarters. Continuity, trust, mutual knowledge.
- ISO9001:2015
Non-negotiable quality
Traceability, documentation and lot-by-lot control: ISO 9001 standards applied without exception, from pilot to industrial volume.
Our figures
Industrial scale.
Production capacity, space and know-how in our plant in Solferino (MN).

Production area
Covered warehouse
Mineral filler storage
Extrusion lines
Annual production capacity
Certified quality
Every stage of the process, from raw-material intake to batch release, is tracked and documented in accordance with ISO 9001.
Founding year
Years of know-how
Our history
Three decades in Solferino.
A long-standing industrial journey, built over time thanks to the contributions of skilled, motivated, and dedicated employees who have supported the company’s growth alongside leading Italian and European chemical groups.
Founding1991Founded
Green Plast is founded in Solferino (MN) as an independent compounder, dedicated exclusively to toll processing.
Certification1996ISO 9001 Quality System
Roll-out of the Quality Management System with lot-by-lot traceability and an in-house lab for process control.
Expansion2000-2010Production growth
Expansion of extrusion lines and volumes: Green Plast becomes a stable partner of major Italian and European chemical and petrochemical groups.
InnovationTodayRenovated facility
Expansion of the plant section and the materials storage area, including a 7,000-square-meter covered warehouse and 600 cubic meters of mineral aggregate storage.

Choose top-quality plastics processing.
Producing high-performance plastic compounds is our specialty. We analyze requirements and formulations, work in partnership with our customers and — thanks to decades of experience — deliver tailored, optimized and reliable processing for highly specific, qualified products.