2 sentences

1. 他在海关总署工作。

   tā zài hǎi​guān zǒng​shǔ gōng​zuò.

   He works at the General Administration of Customs.

   Source: Dong Chinese Dictionary

2. 我有个朋友在美国太空总署工作。

   wǒ yǒu gè péng​you zài Měi​guó tài​kōng zǒng​shǔ gōng​zuò.

   I have a friend who works for NASA.

   Source: Tatoeba