HAGERSTOWN – Eleven employees from Pennsylvania and Maryland sites celebrated significant milestone anniversaries with SGI, a Standard Industries company, in the first quarter of 2025. Three other workers in California and Wisconsin plants also marked anniversaries, company officials said.
SGI is a leading aggregates and mining company that supplies specialized products to the North American roofing, building materials and agricultural industries. Headquartered in Hagerstown, SGI has six production plants powered by more than 650 employees. Plants are located nationwide in Blue Ridge Summit, Pennsylvania; Waynesboro, Pennsylvania; Annapolis, Missouri; Pembine, Wisconsin; Ione, California; and Trona, California.
Charmian Plant | Blue Ridge Summit, Pennsylvania
Five Years
- Ian Lourdon, Mechanic A
- Chad Murdock, Customer Care Representative
- Tyler Palmer, Relief Operator
- Robert Wantz, Garage Mechanic
Fifteen Years
- Chester Sanders, Chief Operator
Twenty Years
- Christopher Eaton, Kiln Operator
Corporate Office | Hagerstown, Maryland
Five Years
- Jessica Claudy, Administrative Assistant
- Allison Devlin, Senior Communications & Marketing Specialist
- Peter Wilson, Manager, Research & Development
Ten Years
- Matthew McClure, Vice President, Operations
Twenty Years
- Derek Small, Research Specialist
“The strength of our company is rooted in our people, and the people who grow with SGI become important agents of change in evolving our business,” said SGI President Justin P. Dunlap. “We’re proud to recognize these anniversaries and look forward to celebrating more milestones as the year progresses.”
In addition to the employees who celebrated major milestone anniversaries, 20 team members marked their first anniversaries with SGI during the first quarter.













