It was a similar story for Yuchan Chae, 11, who will return to Korea next week after three years at Greenpark.
"I was nervous about coming here," he said. "Everybody around me spoke English and I couldn't really understand them. But now I feel a little sad to be leaving friends in New Zealand."
Like Shiloh, he struggled at first with the language but eventually found that his classmates approached him to make friends.
Shiloh and Yuchan are typical of the Bay's young Korean students in that they moved here with their mothers and siblings in order to learn full-immersion English, leaving their fathers working overseas. Primary school-aged Koreans can stay in the Bay for three years or more before returning home.
Greenpark School has 27 international students, mostly Korean, and employs a full-time staff member to liaise with their families. The school has used foreign fees to build four new buildings, providing arts, dance, music and technology spaces for its 920 students.
Principal Graeme Lind said that the income was only incidental to some other advantages of having foreign students at the school.
"The benefits are quite considerable," he said. "The cultural mix develops global understanding, and the children become quite tolerant of people from other cultures as well."
Primary school fees in Tauranga are around $12,000 per year for international students. Schools give some of that money to agents and promoters, but are able to keep the rest.