With a trading volume of HKD 540 6677.HK trades 0 percent unchanged todayTrack Sino‑Ocean Service L (6677.HK) – flat trading, 200‑day SMA at HK$0.35, 52‑week high HK$0.48, and recent 24‑hr market data for comparison.SINO-OCEAN SERVICE HOLDING LChina Industrials Commercial & Professional Services AI generated Elliot Mercer 26/10/2026, 17:11 2 minutes to read