Whitmore Manufacturing Acquires ProAction Fluids – Expanding Jet-Lube’s Product Portfolio to include Drilling Fluids

Rockwall, Texas, November 20, 2025 – Whitmore Manufacturing, LLC, a wholly owned subsidiary of CSW Industrials, Inc. (NYSE: CSW) and a distinguished pioneer in developing solutions that enhance the reliability, efficiency, and longevity of industrial assets, is proud to announce the acquisition of ProAction Fluids.

ProAction Fluids combined with Jet-Lube offers a complete line of performance-tested drilling fluids, lubricants, sealants, and compounds for the Horizontal Directional Drilling “HDD” market. With a strong focus on optimized utility drilling operations, ProAction Fluids’ products enhance operational efficiency while reducing equipment wear and tear, making the drilling processes smoother, more efficient, and significantly more cost-effective.

Mark Bass, President, Whitmore Manufacturing, said, “We are excited to invest in expanding the breadth and depth of our products. Adding ProAction Fluids to our portfolio allows us to offer industry leading technology to more fully address needs in horizontal directional drilling. I could not be more thrilled to work with the ProAction Team as we continue to enhance customer experience.”

To learn more about the ProAction Fluids Product Line, please visit www.proactionfluids.com.

ABOUT WHITMORE MANUFACTURING, LLC.

Established in 1893, Whitmore Manufacturing is an established leader in providing innovative products and services that increase the reliability, performance, and lifespan of industrial assets. Brands include Whitmore, Jet-Lube, OilSafe, Deacon, Air Sentry, and Hydrotex. Whitmore Manufacturing manufactures reliable and high-performance products that meet the specific needs of each industry and application. Industrial customers worldwide rely on Whitmore Manufacturing to deliver the performance engineered solutions industry counts in moderate to extreme conditions and demanding environments. For more information, please visit whitmores.com.

ABOUT CSW INDUSTRIALS, INC.

CSW Industrials is a diversified industrial growth company with industry-leading operations in three segments: Contractor Solutions, Specialized Reliability Solutions, and Engineered Building Solutions. CSW provides niche, value-added products with two essential commonalities: performance and reliability. The primary end markets we serve with our well-known brands include HVAC/R, plumbing, electrical, general industrial, architecturally-specified building products, energy, mining, and rail. For more information, please visit cswindustrials.com/solutions.