Business News has significantly overhauled the BN30 index, a proxy for the WA economy, with seven new additions, prompted by the exit of takeover targets MMA Offshore, APM and Decmil.

Business News has significantly overhauled the BN30 index, a proxy for the WA economy, with seven new additions, prompted by the exit of takeover targets MMA Offshore, APM and Decmil.