BRIEF-China Unicom Hong Kong Posts April Aggregate Number Of Mobile Billing Subscribers Of 297.0 Mln

May 21 (Reuters) – China Unicom Hong Kong Ltd: * APRIL AGGREGATE NUMBER OF MOBILE BILLING SUBSCRIBERS 297.016 MILLION * APRIL NET ADDITION OF MOBILE BILLING SUBSCRIBERS FOR MONTH 3.071 MILLION * APRIL AGGREGATE NUMBER OF 4G SUBSCRIBERS 198.264 MILLION …
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