Statistics Canada says manufacturing sales fell 0.7 per cent to $56.4-billion in December, hurt by the motor vehicle assembly and the aerospace product and parts industries.
The agency says it was the fourth consecutive month that manufacturing sales have moved lower.
Economists had expected an increase of 0.5 per cent, according to financial markets data firm Refinitiv.
Sales were down in 11 of 21 industries.
Sales of motor vehicles fell 6.8 per cent to $4.9-billion in December owing to lower production, mostly attributable to longer seasonal plant shutdowns and the closing of the General Motors Co. assembly plant in Oshawa, Ont. The aerospace product and parts industry decreased 15.7 per cent to $1.9-billion.
Constant dollar sales declined 0.4 per cent, indicating a lower volume of goods sold.
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