Production dropped 0.1%, pulled down by a 3.5% plunge in cars, trucks and auto parts output – the sector’s third consecutive decline.
Auto production plunged 6.4%, its steepest fall in more than three years.
Federal Reserve data suggests manufacturing is still supporting the US economy.
Investment in factories and other fixed assets rises 20.1%.
US manufacturers have struggled this year, with output up only 1.8% in the last 12 months.
Indicates possible economic recovery as Communist party readies to install new leadership.
Factory output in the US rises by 0.7% in June as companies invest in vehicles and machinery.