Mos Official Online Shop Marks 4th Anniversary with a Campaign
Mos Food Service Co., Ltd. (headquartered in Shinagawa-ku, Tokyo; President Eisuke Nakamura), operator of Mos Burger, will hold a campaign celebrating the 4th anniversary of its “Mos Official Online Shop ~Life with MOS~” (https://ec.mos.jp/) starting at 10:00 on Wednesday, July 15, 2026. Built around the concept “A time to unwind, a life to savor,” the e-commerce site offers food alongside goods and collaboration items. To thank customers for four years of support, a lineup of special deals will run from Wednesday, July 15 to Monday, August 31, 2026.
New “Mos Rice Burger (Dry Curry)” Debuts July 15
This item reimagines curry, often called Japan’s national dish, as a rice burger. A specially blended spice mix gives off a refreshing aroma that whets the appetite. Instead of ground meat, it uses diced pork shoulder, topped with fukujinzuke pickles for a satisfying texture. The seasoning is kept mild so that people of all ages can enjoy it. It goes on sale from 10:00 on Wednesday, July 15, 2026.
“Hokkaido-Grown Fried Potatoes” Arrive August 6
As a plus-one menu item to enrich meals at home, Mos introduces frozen fried potatoes that showcase the fluffy texture of Hokkaido-grown potatoes. With a focus on flavorful, skin-on natural cuts, they bring out the ingredient’s natural goodness. Easily prepared in a microwave or toaster oven, they go on sale from 10:00 on Thursday, August 6, 2026.
Details of the 4th Anniversary Campaign
Create Your Favorite-Menu Goods (planned to start late July)
A limited service lets you add embroidery of popular “favorite menu” items onto select products such as T-shirts, caps, socks, and handkerchiefs to make your own original piece.
- Cotton T-shirt (1)/(2): 6,200 yen each
- Cotton cap: 4,500 yen
- Ribbed socks: 4,500 yen
- Organic towel handkerchief: 2,900 yen
- Kids’ T-shirt: 4,500 yen
Embroidery options include Mos Burger, Teriyaki Burger, Hot Dog, Mos Rice Burger, Yakiniku, Oni-Pote (onion rings and fries), and Drink.
4th Anniversary Original Mos Goods
Items inspired by the bags and paper sacks used in Mos Burger stores will be released.
- Clear bag (Mos takeout bag style): S 1,580 yen / M 1,780 yen
- Cooler bag (Mos takeout paper-bag style): 2,200 yen
- Zipper bags (Mos Chicken sack style, potato sack style): 850 yen (5 of each, 10 total)
4th Anniversary Lucky Bags (20% off regular price)
- Six Mos Rice Burgers (2 each of Yakiniku and Kinpira, 1 each of Chili Shrimp and Twice-Cooked Pork) plus 2 pizzas: 4,280 yen (list price 5,360 yen)
- Eight Mos Rice Burgers (2 each of Yakiniku, Kinpira, Chili Shrimp, and Nori Bento with white-fish fry and kinpira): 3,760 yen (list price 4,700 yen)
- Six Mos Rice Burgers (2 each of Yakiniku, Kinpira, and Twice-Cooked Pork) plus a cooler bag: 4,230 yen (list price 5,290 yen)
4th Anniversary Free Shipping Campaign
From Wednesday, July 15 to Tuesday, July 28, 2026, a single order within the same temperature zone totaling 4,980 yen (tax included) or more ships free. Standard delivery fees are 900 yen for ambient-temperature items and 1,200 yen for frozen (cool) delivery (with a 400 yen surcharge for Hokkaido and Okinawa). Orders of 8,000 yen or more per order also ship free.
*All prices in this article include tax. Please check the Mos Official Online Shop for full details.