BUZZ — China Shenhua HK stock slips most in near 4 months as coal sales fall
* Hong Kong shares of China Shenhua Energy slip 2.9% to HK$42.66, on track for the biggest one-day pct decline since June 25 * Stock touches the lowest level since October 8 * Shanghai-listed stock eases 1.5% to 49.8 yuan, set for the biggest one-day pct decline since September 29 * Chinese coal producer and power gene