Adele Carles

Premier Colin Barnett will be forced to undertake another cabinet reshuffle in the lead up to May's state budget after the resignation of Treasurer and Transport Minister Troy Buswell.

There have been plenty of highs and lows in state politics as the major parties turn for home in the race to the state election next March.

Fremantle, Stirling and Murdoch are set to receive an economic boost, with the state government announcing plans to relocate 80,000 square metres of office space from the CBD to suburban locations.

Lynas Corporation has hit a stumbling block in its plan to export 33,000 tonnes of rare earths concentrate through Fremantle Port each year, in the form of independent MLA Adele Carles.

Ports such as Fremantle and Oakajee are vital, yet problematic, for the state's development.