Is "of which" correct?

English as a Second Language English Vocabulary, Grammar and Idioms
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In fact, it was reported on Friday that the police have arrested 29 women of various nationalities, aged between 20 and 47, in an operation targeting pivoted KTVs, of which 10 of them will be deported as their short-term visit passes and work passes were cancelled.

Is “of which” correct?

Thanks!

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Here is my suggestion.

In fact, it was reported on Friday that police arrested 29 women of different nationalities, aged between 20 and 47, in an operation targeting KTVs, 10 of whom are being deported as their short-term visit passes and work cards have been cancelled.

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How about, “…in an operation targeting pivoted KTVs, 10 of whom will be deported as their short-term visit or work passes were cancelled.”

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(In tune with the formal reporting and not the journalistic reporting practice)

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