FAP, May 31 / PRNewswire-FirstCall-Asianet /-- Huanju Group's first-quarter net revenue was $583.6 million, down 6.4% from a year earlier and estimated at $562.8 million. Real-time streaming revenue in the first quarter was $520.4 million, down 12% from a year earlier and estimated at $494 million. The number of Bigo mobile monthly active users in the first quarter was 37.7 million, an increase of 19% over the same period last year. The gross profit margin for the first quarter was 35.1%, compared with 32.2% in the same period last year, with an estimated 34.1%.