Apparel chain Le Chateau Inc on Wednesday said it had enjoyed a solid start to the current fiscal year with same-store sales in the first 10 weeks of the second quarter up 4.3 per cent but its US unit was still losing money. The Montreal-based operator of more than 150 stores said total retail sales rose 6.9 per cent in the same 10 week period which built upon its first quarter sales and earnings growth.