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We report on Australia Telescope observations of the massive star formingregion G305.2+0.2 at 1.2 cm. We detected emission in five molecules towardsG305A, confirming its hot core nature. We determined a rotational temperatureof 26 K for methanol. A non-LTE excitation calculation suggests a kinematictemperature of order 200 K. A time dependent chemical model is also used tomodel the gas phase chemistry of the hot core associated with G305A. Acomparison with the observations suggest an age of between 2 x10^4 and 1.5x10^5 years. We also report on a feature to the SE of G305A which may show weakClass I methanol maser emission in the line at 24.933 GHz. The more evolvedsource G305B does not show emission in any of the line tracers, but strongClass I methanol maser emission at 24.933 GHz is found 3\arcsec to the east.Radio continuum emission at 18.496 GHz is detected towards two \hii regions.The implications of the non-detection of radio continuum emission toward G305Aand G305B are also discussed.

ATCA 1.2 cm Observations of the Massive Star Forming Region G305.2+0.2