Since 1975, Koski has taken on various roles in sales and marketing, business development, project management and R&D. He has led the innovation of new ore extraction technologies resulting in reduced production costs. He has also been instrumental in forging new sales channels and partnerships to bring Canadian technologies to the global market.

Koski has been a member of the CIM Sudbury Branch since the 1970’s. As a member, he regularly participated in monthly General Membership Meetings and social events. At these events, he actively engaged in the keynote presentations and networking activities connecting industry, service providers and students. For over 10 years, Koski actively contributed to the Branch as a director.  

Koski’s positivity and enthusiasm has helped him build strong relationships within the industry, allowing him to be successful in his role and allowing him to be a good representative of CIM Sudbury. His success in securing sponsorships has helped the Branch achieve good profit from events, thus allowing for significant contributions to the community in the form of donations and scholarships.