As a rule, a sentence should flow from subject to verb to object, without lengthy detours along the way. In general, don’t separate subject and verb, verb and object, or helping verb from main verb.
There is no reason to separate the subject, Hong Kong, from the verb, was transferred, with a long adverb phrase. Moving the modifier to the left, in front of the subject, allows the writer to reunite the subject and predicate.
Style point: Delayed verb
Multilingual: Adverb between verb and object
Exercises:
Awkward and misplaced modifiers
Misplaced modifiers 1
Misplaced modifiers 2
Misplaced modifiers 3