August, 2026. The Peakstone Group, LLC (“Peakstone”) announced today that it served as the exclusive financial advisor to Metals and Additives, LLC (“Metals and Additives”), a manufacturer of proprietary products including flame retardants, smoke suppressants, catalysts, adsorbents, chemical foaming agents, and lead oxide products serving a diverse range of industrial applications, in connection with its investment by H2 Equity Partners (“H2”). As part of the transaction, Metals and Additives will join with William Blythe Limited (“William Blythe”), a UK-based specialty chemicals company and portfolio company of H2.
“Joining with William Blythe marks an exciting new chapter for Metals and Additives and will serve as a catalyst for the Company’s continued growth,” said Gregg Bennett, CEO of Metals and Additives. “William Blythe’s European and Asian presence, technical expertise, and strong reputation provide an excellent platform to expand our global reach and capitalize on the significant opportunities ahead. Together with H2 Equity Partners, William Blythe shares our values and long-term commitment to innovation, our customers, and our employees. We are confident in this partnership and excited about the future.”
“We are excited to partner with Gregg, Mark and the entire Metals and Additives team” said Luke Bray, Investment Director of H2. “The combination of Metals and Additives and William Blythe creates a unique, international platform focused on regulated and mission-critical applications, with leading positions in flame retardants and smoke suppressants. This transaction creates a business of significant scale with revenues of over $160 million.”
About Metals and Additives LLC
Founded in 1973 and headquartered in Brazil, Indiana, Metals and Additives Holdings offers a portfolio of proprietary products, including flame retardants, smoke suppressants, catalysts, adsorbents, chemical foaming agents, and lead oxide products. Through its four businesses, Polymer Additives Group, Addenda, Reedy Chemical, and Omni Oxide, Metals and Additives serves a diverse range of applications across the digital communications, data center infrastructure, building materials, aviation, battery, lead recycling, injection molding and extrusion, polymer processing, and crude oil refining markets throughout North America and Asia.
About William Blythe
Founded in 1845, William Blythe is a global leader in the development and manufacture of specialty inorganic chemicals that form critical inputs to products across a range of regulated and high-performance applications. William Blythe leverages its market-leading R&D and production capabilities to support customers in finding solutions for demanding applications.
About H2 Equity Partners
H2 Equity Partners is a leading independent investment firm, making investments in medium-sized companies with significant growth or improvement potential. The H2 team has built an exceptional track record of acquiring, strengthening and growing fundamentally attractive businesses. H2 invests in companies across all sectors that have strong market positions and competitive advantages, which can benefit from the extensive international operating experience of the H2 team.
About Peakstone
The Peakstone Group, LLC is a leading middle market investment bank focused on entrepreneur and family-owned businesses. The firm is headquartered in Chicago with over 50 professionals. Since its founding in 2009, Peakstone has advised over 300 clients on M&A and capital raising engagements. For more information, please visit www.peakstonegroup.com. To receive investment and proprietary acquisition opportunities, please register at www.peakzone.com.