Our History – Metalúrgica Riosulense Since 1946



Metalúrgica Riosulense was born in Rio do Sul/ Santa Catarina (Brazil). Among the first activities are the basic mechanics services provided to the woodworking and the cassava starch industries.



Riosulense takes an important step in its growth and starts its activities in the automotive market, betting on the production of valve guides.


The production of auto parts becomes the main activity of the company.


Seeking to expand its activities and improve its employees’ structure, RIO inaugurates a new headquarters, where remains until today.


The company conquers the Productivity and Quality Incentive Award, granted by the National Confederation of Industry (CNI).


Excellence consolidates the company Riosulense as a supplier of big automakers.


The growth of the metallurgy brings new achievements, and the company receives the ISO 9001 certification.


Riosulense starts a new production line and starts to supply railroad parts.


The company starts the cylinder liners factory.


Riosulense is the first foundry in Brazil to receive the international certificate from the Transportation and Power Generation program, which seeks qualification improvements in the processes of companies that act as suppliers to railroads.


The company is recognized for its relevant contribution to the evolution of the practice of people management with the “ser humano” award, from the Brazilian Association of Human Resources (ABRH-SC).


Riosulense takes a new position, with the definition of new principles and a new purpose, in addition to a change in its culture and management structure.


The company achieves IATF 16946: 2016 Certification.


Metalúrgica Riosulense is now RIO. We went through a brand rebrand.

We inaugurated the Prototype Factory, with 3D printing technology.


We were the grand champion of the Neoway Advisor Award (Discovery – Sales & Marketing category) for the use of Big Data Analytics and Artificial Intelligence technology.

We signed a partnership with Wirklich for the production of high performance plastic injections!


We won first place in the Santa Catarina Innovation Award (FAPESC), in the Innovation in Service or Process category.

We’ve been certified as a Great Place To Work.



“Iluminar caminhos, acender talentos e moldar o futuro.”


Desenvolver e fornecer produtos, materiais, serviços de fundição e usinagem para mover o mundo, de forma criativa e sustentável.”


“Ser uma empresa Global e a melhor opção de parceria e negócios para nossos clientes e distribuidores!”


Pensamos e praticamos Inovação, Excelência, Respeito e Simplicidade em Equipe!

Ética e entre todos!


Ela reforça o que o mercado já sabe:

Na RIO, você importa. Estamos aqui para moldar o futuro com você