NOTAM's have been issued for the Jiuquan area.
This is possibly the SJ-11 Shi Jian 11-04 launch to take place on August 17.
Other possibility is the SW-4 Shiyan Wexing-4 and CX-3 Chuang Xin-3 launch by a CZ-2D.
Here are still other NOTAMs
A1215/11 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY N335501E0974354-N334527E0983435-N330323E0982258-N331253E0973241 BACK TO START. VERTICAL LIMITS: SFC-UNL.ALL ACFT ARE PROHIBITED TO FLY INTO THE AREA. SFC - UNL, 18 AUG 09:20 2011 UNTIL 18 AUG 09:50 2011. CREATED: 16 AUG 09:46 2011 A1213/11 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY N361842E0984220-N361428E0990510-N354811E0985737-N355224E0983454 BACK TO START. VERTICAL LIMITS: SFC-UNL.ALL ACFT ARE PROHIBITED TO FLY INTO THE AREA. SFC - UNL, 18 AUG 09:20 2011 UNTIL 18 AUG 09:42 2011. CREATED: 16 AUG 09:44 2011
Being exactly the same as for SJ-11-2 & SJ-11-3, I would think this is for SJ-11-4 to take place on
August 18 from 0920 until 0942UTCFirst NOTAM is to avoid the fairing drop zone, the second the first stage drop zone