US manufacturing output unexpectedly increases in December

Group 1 - U.S. factory production unexpectedly increased by 0.2% in December, following a revised 0.3% gain in November, despite economists predicting a decline of 0.2% [2][3] - Manufacturing output rose 2.0% year-over-year in December, but contracted at a 0.7% annualized rate in the fourth quarter, down from a 2.8% growth rate in the third quarter [3][6] - The manufacturing sector has faced challenges due to import tariffs, which have impacted overall production, although primary metals production increased by 2.4% [3][4][5] Group 2 - Motor vehicle production declined by 1.1% in December, marking the fourth consecutive month of decline, with a year-over-year decrease of 2.8% [5] - Mining output fell by 0.7% after a previous increase, while utilities production rose by 2.6% due to increased heating demand from frigid temperatures [6] - Overall industrial production increased by 0.4% in December, with a year-over-year growth of 2.0%, and a growth rate of 0.7% in the fourth quarter [6]