JSW is a leading Western Australian production drilling company with Tier 1 customers across commodities including iron ore, gold and bauxite.

In December 2016, Allegro acquired JSW out of the administration of Hughes Drilling. Allegro acquired JSW out of the administration of Hughes Drilling in December 2016, representing the fifth investment made in Allegro Fund II. This acquisition secured employment continuity for approximately 140 staff, who contributed towards shaping JSW’s expertise in specialist blasting practices that protect infrastructure and cultural heritage.

Upon Allegro’s ownership, JSW managed through the industry downturn and continued to innovate its drilling and sampling systems to support a pipeline of projects across Western Australia. Following JSW’s administration, the business was lossmaking for a period and during Allegro’s ownership period earnings were rebuilt. 

In October 2024, Allegro completed the exit of JSW through a sale to a trade buyer.