Korean Sales Engineer in Dongguan (lithium battery / semiconductor sector). Maintain Korean-speaking clients, execute and confirm orders, draft sales contracts, clarify production requirements, coordinate with project managers on production progress, track acceptance and payment collection, collect customer feedback. Requires bachelor's degree (lithium battery/electrical/mechanical sales or translation background preferred), Korean as working language with fluent listening/speaking, willingness for 1-5 month short-term Korea business trips.