(Gildan article updated with Hanesbrands' damage.)

MONTREAL, QUEBEC ( TheStreet) -- Apparel makers Gildan Activewear ( GIL) and Hanesbrands ( HBI) are a few of the companies that have been affected by the massive earthquake that shook Haiti Tuesday.

>>Haiti Earthquake Images

Gildan, which predominantly makes t-shirts in the country, said one of its contractor's factories suffered "substantial" damages in the quake, but two others that sew the majority of its material remain intact.

Gildan said it has plenty of inventory and is boosting production in the Dominican Republic, Honduras and Nicaragua to compensate for the damage to the Haiti factory.

Underwear maker Hanesbrands also said three out of the four of its sewing contractors in Haiti suffered damages in the disaster. For two of the contractors the damage was minimal, but the other reported structural damage. Its fourth factory in Haiti did not see any damage and is operating at full capacity.

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