This is the official Iwate regional specialty shop in Metropolitan Tokyo.
The recommended Oshu potato in this shop is “A sweet potato snack with a custard cream center, characterized by its moist texture”.

Website	http://www.iwate-ginpla.net/
Address	Nankai Tokyo Bld. 1F 5-15-1 Ginza, Chuo-ku, Tokyo
Opening Hours	10:30-19:00(The end of the month -17:00) Open year round (except for the New Year's holiday)
The closest Station	Higashi Ginza Station Exit 6 (Subway Hibiya Line) Higashi Ginza Station Exit A1 (Subway Toei Asakusa Line)
Shop Features	Includes tourist information center Includes dining-in option Has an online shop
Online shop	https://iwate-ginpla.net/index-onlineshop.html

Region	Tohoku
Address area	Ginza and Yurakucho areas

The details may be changed. Please ask each shop.

update: Sep.30.2022