Mathew Ratty

Medibio has appointed US-based Jack Cosentino as chief executive and managing director.

Two Perth entrepreneurs are looking to clean up in the laundry business with new offerings that bring technology and style to an often thankless household chore.

Tech Mpire has awarded a business consultancy contract to Mathew Ratty, who was appointed non-executive director of the company in February.

Danakali has appointed Danny Goeman as chief executive. Mr  Goeman is a highly experienced mining industry professional who joined Danakali in 2016 as head of marketing. He replaces Paul Donaldson who will become a non-executive director.

Aspire Mining has announced the retirement of long-serving non-executive chair David McSweeney. Mr  McSweeney joined the Aspire board in February 2010 during the company’s acquisition of the Ovoot Coking Coal Project.

Michael Chan, a highly experience executive and metallurgical engineer, has joined Hexagon Resources as chief development officer.

Claire Newey has resigned as chief financial officer of DroneShield, but will remain with the company until early 2019 to assist with the transition process.Sean Shwe has resigned as non-executive director of Kresta Holdings.