On Monday 1 December 2025, PwC Luxembourg announced that Advanced Logic Technology SA (ALT), a Luxembourg-headquartered geophysical instruments and software business, and its United States (US) subsidiary Mount Sopris Instruments Inc (MSI) had agreed to sell both companies to IMDEX Limited, an Australia-listed mining technology group (ASX:IMD).

The acquisition covers 100% of ALT and its subsidiary, with a total consideration that includes an upfront payment of €55.8 million.

According to ALT’s exclusive mergers and acquisitions (M&A) advisor PwC, the acquisition brings together three market leaders with complementary strengths. ALT’s advanced borehole imaging instruments and WellCAD software, MSI’s rugged geophysical logging systems and ASX:IMD’s global platform will reportedly form a unified ecosystem delivering richer data insights and improved decision-making.

Jean-Luc Deltombe, ALT’s founder, commented: “For over 30 years, ALT has delivered precision, reliability and innovation in borehole imaging and downhole measurement. IMDEX’s acquisition is a proud moment for me, my fellow shareholder Annick Henriette, our management and all our staff. IMDEX’s global platform and technical depth provide ALT and MSI the scale to accelerate innovation and deliver even greater value across mining, geotechnical, water and energy sectors.”

The transaction also marks the completion of a transition plan, including the appointment of new management and the phased exit of ALT’s founding shareholder. Jean-Luc Deltombe stepped back from daily business activity in 2023 while co-shareholder Annick Henriette retired earlier this year.

Looking forward, both teams will continue to operate from Luxembourg and Denver in the US. The transaction remains subject to foreign direct investment approval in Luxembourg and other customary closing conditions, with completion expected in early 2026.

IMDEX is a global mining technology company that provides advanced sensors, cloud-connected tools and data analytics to help resource companies and drilling contractors improve subsurface understanding, decision-making and operational efficiency.

EO