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--- Commerce
貿易 bōeki trade | commerce   Ref. 易 [easy]
→ 交換 する kōkan suru to exchange 換 [exchange] Ref. 交 [exchange]
→ 交換 する kōkan suru to exchange Ref. 換 [exchange]
営業 eigyō sales 業 [occupation]  Ref. 営 [manage]
営業部 eigyōbu sales department   Ref. 営 [manage]
供給 kyōkyū supply   Ref. 給 [supply]