Sugi's (TYO:7649) all-store net sales rose 9.3% in May, according to a filing on the Tokyo Stock Exchange on Monday.
The Sugi drugstore business at all stores grew by 10.3% and the prescription segment gained 6.7% during the month under review.
On an existing store basis, net total sales gained 6.4%.
Existing store sales of the Sugi drugstore increased by 6.6% and prescription climbed 5.8%.
At the end of December, the Sugi Group opened nine new stores and closed five existing stores, bringing the total number of stores to 2,343.