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RCSII Sustainable Investments Acquires Master Instruments Pty

Master Instruments Pty Ltd acquired by RCSII Sustainable Investments

AcquisitionManufacturingAU

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Acquired

Master Instruments Pty Ltd

AustraliaManufacturing

Undisclosed amount

April 13, 2026

RCSII Sustainable Investments logo
Acquirer

RCSII Sustainable Investments

RCSII Sustainable Investments has acquired Master Instruments Pty Ltd for an undisclosed amount. Master Instruments, an Australian-owned and operated company established in 1942, is a prominent manufacturer, importer, and distributor specializing in soft energy and DC power products, portable test and measuring equipment, and electronic assembly. This acquisition marks a significant strategic move for RCSII, integrating a long-standing industrial entity into its portfolio.

With over 120 team members, Master Instruments has built an extensive operational footprint, including a 5,500 square metre head office and distribution centre in Milperra, Sydney, a Melbourne branch, a Queensland sales office, and a Western Australia presence through Siomar Battery Engineering. The company serves a widespread customer base across Australia and New Zealand, with a growing international presence in Oceania, Asia, Europe, and the US. Its client roster spans the OEM industry, government, defence and intelligence services, Telstra, and the wholesale and retail sectors, underscoring its diverse market penetration and product application knowledge in the South Pacific region.

The acquisition is strategically aligned with RCSII Sustainable Investments' focus, leveraging Master Instruments' deep expertise in energy products and its robust manufacturing and distribution capabilities. Master Instruments represents many of the world's leading battery manufacturers and is recognized for its benchmark product and application knowledge. This integration provides RCSII with an established platform, advanced facilities, and a skilled workforce, enhancing its capacity in key industrial and energy-related sectors.

The combined entity is expected to capitalize on Master Instruments' extensive market reach and operational excellence, supported by RCSII's strategic direction. This move aims to drive further growth and innovation within the energy, instrumentation, and electronic assembly markets, strengthening its position across existing and new customer segments. The acquisition is poised to create a more comprehensive and resilient enterprise, poised for future expansion.

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