PPK has acquired an underground drilling and boring equipment company, Firefly International.
It purchased the business for $1.86 million.
Speaking on the recent buy of Firefly, PPK chairman Robin Levison said "the acquisition of Firefly continues PPK's ongoing commitment to offer, quality fit-for-purpose products and service to the underground high-gas coal mining industry".
"Firefly nicely compliments PPK's current suite of products and services; in addition Firefly has a quality customer base, particularly in the Hunter region."
It will be funded from cash reserves.