Brigade Workshop Companies were units of the Electrical & Mechanical Engineers (today's RAEME), so they were mostly tradesmen who made and repaired all sorts of military equipment, including weapons (armourers). The 2/125th was attached to a Brigade headquarters, as opposed to an infantry battalion, artillery regiment, etc. The 2/125th was based at Balikpapan, Borneo at the end of the Second World War and tasked with removing equipment from Japanese underground workshops (https://www.awm.gov.au/collection/C197726). I'm trying to ascertain which Brigade the 2/125th Workshops were attached to.