ROCBOLT Technologies and ROCBOLT Resins
Our Affiliates

Our network of affiliates ensures quality, efficiency and availability providing complementary products and engineering solutions. This gives our customers a complete resource for all their ground control requirements, not to mention reduced costs and lead time!



J-LOK Resins

J-LOK manufactures state-of-the-art resin anchorage systems that are designed to complement JENNMAR products and provide an optimum bolt and resin system. J-LOK equipment is among the most technologically advanced in the resin industry.




JENNCHEM designs and delivers chemical roof support, rock stabilization and ventilation sealing products to the mining and underground construction industries. JENNCHEM's lab and test facility conducts meticulous and ongoing testing to ensure reliability and consistency of all products.



Keystone Mining Services (KMS)

Keystone Mining Services (KMS) is JENNMAR's engineering affiliate company that provides advanced engineering services such as structural analysis, numerical modeling and 3-D modeling. KMS is also responsible for conducting research and development of new products.



JENNMAR Specialty Products

JENNMAR Specialty Products provides custom steel fabrication services to the mining, tunneling and civil construction industries. Products include Square Sets, Impact Resistant Arch Sets, Bent Arch Sets and Long Radius Arch Sets.



JM Steel

JM Steel’s ultra-modern 120,000 sq. ft steel processing facility is located on Nucor Steel’s industrial campus near Charleston, SC. JM Steel has the processing capability and extensive inventory to provide a variety of flat rolled steel products including master coils, slit coils, blanks, beams, sheets, flat bars and panels.




JENNMAR Civil is dedicated to providing products and services to the Civil Construction and Tunneling industries. Products include various types of rock support bolts, anchoring systems and resins to support tunneling, geotechnical, foundation and earth retention projects.



JENNMAR McSweeney is a leading manufacturer of forged drill steel products and other proprietary steel products for the underground mining, railroad, construction, and highway industries.



JENNMAR SanShell manufactures roof bits and continuous miner bits for the mining industry as well as specific bits for construction and metal cutting.



TungsteMet manufactures standard and custom-molded carbide products for many different industries.


CSA - Compliance Staffing Agency

Supplying safe and productive employees to the energy, oil & gas, industrial and manufacturing industries.