I have never associated the growing of Tangerines with South Korea. I have unconsciously associated the growing of tangerines with hotter countries closer to the equator. So, it came as a surprise to me when I discovered that Tangerines 감귤 are grown on a commercial scale on Jeju island 제주도, South Korea. Jeju island 제주도 is situated to the south of mainland South Korea and it is renowned for itʼs Tangerines.
I found a Tangerine growing farm on Jeju island which has IDNs for itʼs website,
http://감귤.한국 (tangerine.korea) and
http://비바리농원.한국 (Bibari farm.korea). Looking at the photos on their website one can see that they grow their Tangerines in greenhouses. Tangerines can also be grown outside on Jeju island and maybe this farm does also grow Tangerines outside.
More info on Jeju Tangerines at
http://blog.snackfever.com/2017/01/j...ean-tangerines
André Schappo