I put up this information particularly for visitors from China. China's most popular credit card, 中国银联, or Zhōngguó Yínlián (UnionPay, in English) can be used at Kyoda Michino Eki, or Roadside Station Kyoda. I've been asked by some Chinise visitors about places where they can use the credit card.
Perhaps, I should explain a little more about this facility. Although it says Michino Eki, or roadside station, it's more like a roadside market housed in a large building. In fact, Michino Eki are all over Japan, usually established along national highways and expressways in this country, selling at each facility their own local products. In this particular facility here in Nago City, Okinawa, many local food producers and retailers sell their products. If you are looking for the local products from this region, Roadside Station Kyoda is a good place to go.
Visitors from Chinia should also be informed that UnionPay credit card can be used only at the casher at the main entrance. Unfortunately, other cashiers do not handle UnionPay card. So, it will be convenient if Chinese visitors---visitors from other nations, for that matter---still carry some amount of Japanese yen as well.
In case you drive in Okinawa (assuming that you use the Okinawa Expressway), here is the direction. Drive the expressway north and get off the expressway at Kyoda (the last exit to the northern region of Okinawa island). Continue driving north on National Route 58 for about 1 kilometer. Soon, you'll see a road sign just like below. Follow the arrow to the right and you can park your car at the large parking lot. (Google Map Here)
The red-roofed building is not the market building.
The market building is in the back.
Follow the arrows that point to the right.
Parking lot is on the right of the road. (No charge for parking)
The main entrance of the market building.
UnionPay credit card can be used only at the cashier on the left of La Gare Bakery.
This sign is posted so small that many visitors hardly notice of it.
The cashier at the main gate. (Market Building)
Nuchi Gusui Restaurant serves delicious local cuisine.
(accepts Japanese yen only.)