How do I ask HR whether my company supports Korean language classes?

Frame it around the work rather than as a personal favour, and send it to HR by email.

Something like: you want to follow meetings more accurately, you are planning to study Korean more seriously, and you would like to know whether the company has in-house training or tuition support. That is enough. Email works better than asking in person because the person receiving it can check with other departments before replying.

Ask about five specific things. Whether in-house language training exists. Whether external academy fees are reimbursed, and if so what attendance or completion conditions apply and what the annual cap is. Whether textbooks and TOPIK examination fees are included. And — the one people forget — whether a self-development allowance or welfare points can be used for tuition even when no dedicated scheme exists. That last route is available at more companies than you would expect.

If no support exists, there are real alternatives in Ulsan. The Ministry of Justice's Social Integration Program is the one worth looking at first: it costs very little, runs evening and weekend classes, and the hours count toward permanent residency or naturalisation later. You take a placement test through the social integration information portal and are assigned a level. The foreign resident support centre and the family centre in Ulsan also run Korean classes that are free or very cheap.

If you are studying alongside work, King Sejong Institute's online courses are free and well structured. More useful than any textbook, though, is collecting the expressions that actually recur in your meetings. Note the words that keep appearing in minutes and internal email, then ask a colleague over lunch. That closes the gap with your own workplace faster than general study material.