Key Takeaways
- • Reed Minerals, a Speyside Equity portfolio company, completed its acquisition of U.S. Minerals, consolidating two competing coal-slag abrasive producers (Black Beauty and Black Diamond brands) under single ownership for the first time.
- • The transaction represents a bolt-on acquisition strategy for Speyside less than two years after carving Reed out of Harsco (now Enviri) in a $45 million deal in 2024, expanding Reed's geographic footprint and manufacturing capacity across a fragmented industry with few national operators.
- • U.S. Minerals brings seven manufacturing plants, a 35-year operating history, and a distributor network serving customers nationwide; the combined entity will control competing blasting media and roofing granule product lines sold across bulk, bag, and supersack distribution formats.
- • The coal-slag abrasives market serves industrial maintenance, infrastructure repair, marine work, and residential roofing applications; demand for these materials reflects their cost efficiency, quick-cutting properties, and minimal free-silica content compared to traditional sand alternatives.
- • Speyside Equity Fund II LP, which closed at its $300 million hard cap in November 2025, is funding this consolidation as part of a stated strategy to identify additional domestic and international consolidation opportunities in the specialty minerals sector.
Summary
Reed Minerals, a portfolio company of Speyside Equity, has completed its acquisition of U.S. Minerals, marking the first time the two largest coal-slag abrasive producers have consolidated under common ownership. Reed, which was carved out from Harsco Corporation (now operating as Enviri) by Speyside in 2024 for approximately $45 million, now controls both the Black Beauty and Black Diamond branded abrasive lines. The transaction strengthens Speyside's position in the fragmented specialty minerals sector, where few producers operate on a national scale.
U.S. Minerals, based in Tinley Park, Illinois, near Chicago, has operated for more than 35 years as an independent recycler and processor of coal slag and copper slag. The company operates seven manufacturing plants and maintains a distributor network serving customers across the United States. U.S. Minerals had been held by Merit Capital Partners as a portfolio company since 2010. The acquisition consolidates complementary product lines: Reed's Black Beauty brand competes directly with U.S. Minerals' Black Diamond brand, both serving the abrasive blasting market where industrial crews use these materials to strip rust, paint, and old coatings from steel and other surfaces before repainting or repair.
Coal slag and copper slag represent industrial byproducts from power generation and metal smelting that would otherwise be discarded. When processed into uniform grit, these materials command market value as single-use blasting media because they cut efficiently and contain minimal free silica—a fine dust linked to lung disease that has increasingly pushed industrial users away from traditional sand. The same materials, when crushed and colored, serve as granules for asphalt roofing shingles. Demand for these abrasives tracks industrial maintenance cycles, infrastructure and marine repair activity, and residential roofing construction volumes. Reed's operational footprint now extends across processing, packaging, and distribution sites serving customers nationwide through multiple supply formats.
Mike Kozak, CEO of Reed Minerals, stated: "The combination of these two strong companies will allow us to expand our operational footprint and strengthen our ability to provide our customers with the highest quality materials, responsive service and the right product for each and every application." Eric Wiklendt, a Speyside partner and chairman of Reed's board, characterized the transaction as part of the firm's value creation strategy, noting: "We believe that there are more opportunities in the space both domestically and internationally. This deal commences that strategy by creating a more robust platform from which to build."
Speyside Equity, headquartered in Ann Arbor, Michigan, manages control investments in middle-market businesses with revenues below $500 million. The firm targets acquisition opportunities including spin-offs, carve-outs of large multinationals, industry consolidations, and family-owned businesses, with sector focus on specialty chemicals and minerals, metal forming and fabrication, plastics, building products, and food ingredients. Speyside Equity Fund II LP, currently deployed from a $300 million hard cap that closed in November 2025, is funding this acquisition alongside earlier vehicles including the $130 million Fund I and the $620 million Opta Group continuation fund established in 2023.
U.S. Minerals, based in Tinley Park, Illinois, near Chicago, has operated for more than 35 years as an independent recycler and processor of coal slag and copper slag. The company operates seven manufacturing plants and maintains a distributor network serving customers across the United States. U.S. Minerals had been held by Merit Capital Partners as a portfolio company since 2010. The acquisition consolidates complementary product lines: Reed's Black Beauty brand competes directly with U.S. Minerals' Black Diamond brand, both serving the abrasive blasting market where industrial crews use these materials to strip rust, paint, and old coatings from steel and other surfaces before repainting or repair.
Coal slag and copper slag represent industrial byproducts from power generation and metal smelting that would otherwise be discarded. When processed into uniform grit, these materials command market value as single-use blasting media because they cut efficiently and contain minimal free silica—a fine dust linked to lung disease that has increasingly pushed industrial users away from traditional sand. The same materials, when crushed and colored, serve as granules for asphalt roofing shingles. Demand for these abrasives tracks industrial maintenance cycles, infrastructure and marine repair activity, and residential roofing construction volumes. Reed's operational footprint now extends across processing, packaging, and distribution sites serving customers nationwide through multiple supply formats.
Mike Kozak, CEO of Reed Minerals, stated: "The combination of these two strong companies will allow us to expand our operational footprint and strengthen our ability to provide our customers with the highest quality materials, responsive service and the right product for each and every application." Eric Wiklendt, a Speyside partner and chairman of Reed's board, characterized the transaction as part of the firm's value creation strategy, noting: "We believe that there are more opportunities in the space both domestically and internationally. This deal commences that strategy by creating a more robust platform from which to build."
Speyside Equity, headquartered in Ann Arbor, Michigan, manages control investments in middle-market businesses with revenues below $500 million. The firm targets acquisition opportunities including spin-offs, carve-outs of large multinationals, industry consolidations, and family-owned businesses, with sector focus on specialty chemicals and minerals, metal forming and fabrication, plastics, building products, and food ingredients. Speyside Equity Fund II LP, currently deployed from a $300 million hard cap that closed in November 2025, is funding this acquisition alongside earlier vehicles including the $130 million Fund I and the $620 million Opta Group continuation fund established in 2023.
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