News & Events

Keep up to date with all of our lastest news stories and events. Learn more about how JENNMAR is revolutionizing the world of mining, tunneling, and civil construction.



Calandra Group, LLC and ABC Technology Group USA announce Joint Venture

[December 13, 2018] - Calandra Group, LLC and ABC Technology Group USA, are pleased to announce the formation of a new Joint Venture company, Turnstone Industrial Solutions, LLC, [Winchester, KY, October 1, 2018] – Turnstone Industrial Solutions will manufacture non-metal structural support systems, flexible ducting and semi-rigid polymer tubing products for mine and tunnel ventilation, industrial flexible ducting for temperature and environmental control, and rapidly-deployable air-stop seals and barriers.


CTA Small HeaderCTA Large Header Text Goes Here

Join us for networking events in your area throughout the year, view local job listings, gain experience in the field through board positons, apply for awards and scholarships, and more