2 sentences for 总公司 (zǒng​gōng​sī)

1. 这家子公司的重大决策必须报请总公司批准。

   zhè jiā zǐ​gōng​sī de zhòng​dà jué​cè bì​xū bào​qǐng zǒng​gōng​sī pī​zhǔn.

   Major decisions of this subsidiary must be submitted to the headquarters for approval.

   Source: Dong Chinese Dictionary

2. 我们的总公司位于北京，在全国各大城市都设有分部。

   wǒ​men de zǒng​gōng​sī wèi​yú Běi​jīng, zài quán​guó gè dà chéng​shì dōu shè​yǒu fēn​bù.

   Our headquarters are in Beijing, and we have branches in major cities across the country.

   Source: Dong Chinese Dictionary