Can zakat be given to only one of the eight asnaf?

In the context of the school of Jurisprudence of Shafi'i, it is obligatory to give Zakat to all 8 asnaf in your home country as long as they still exist there. In Singapore, Muis is the authorized body responsible for the maslahat of the Muslim community including the Zakat system. Muis will disburse the Zakat money to all 8 asnaf according to syara'. Hence it is encouraged to fulfil your Zakat via Muis.