66 results
6-K
EX-99.1
CHKIF
China Southern Airlines Co LTD
21 Sep 23
Current report (foreign)
6:02am
Emission Limits of Water Pollutants DB44/26-2001 / / No 1 main outlet in sewage treatment station COD: 152mg/L Five-day BOD: 54.8mg/L Suspended solids: 28mg … /L Petroleum: 0.97mg/L Ammonia nitrogen: 0.526mg/L Anionic surfactant: 0.126mg/L Phosphate: 0.25mg/L Emission Limits of Water Pollutants DB44/26-2001
6-K
EX-99.1
CHKIF
China Southern Airlines Co LTD
30 Aug 23
Current report (foreign)
9:33pm
chromium: ND (below the Emission Limits of Water Pollutants / / No discharge outlet in detection limit) DB44/26-2001 sewage T-Cr: 0.086 mg/L treatment … station 1 main outlet COD: 152mg/L Emission Limits of Water Pollutants / / No in sewage Five-day BOD: 54.8mg/L DB44/26-2001 treatment Suspended solids
6-K
EX-99.1
CHKIF
China Southern Airlines Co LTD
29 Dec 22
Current report (foreign)
6:04am
infrastructure
Harbin
Structures (e.g. drainage, heating, septic tank and others)
Dalian
Structures (e.g. running water, bridge and others)
(ii) Lands Leased
6-K
EX-99.1
CHKIF
China Southern Airlines Co LTD
28 Sep 22
Current report (foreign)
6:01am
treatment station
Hexavalent chromium: < 0.004 mg/L (below the detection limit)
T-Cr: 0.02 mg/L
Emission Limits of Water Pollutants DB44/26-2001
No
1 … : 1.11 mg/L
Anionic surfactant: 0.98 mg/L
Fluoride: 0.37 mg/L
Emission Limits of Water Pollutants DB44/26-2001
No
1 pretreatment outlet in surface
6-K
EX-99.1
5en2d3m5rvrde1fusyd
31 Aug 22
Current report (foreign)
7:41am
6-K
EX-99.1
n9kgfuf75hf15azz
27 Apr 22
Highlights of the Year
7:56am
6-K
EX-99.2
35gps 9kr7
1 Apr 22
Current report (foreign)
6:03am
6-K
EX-99.1
qv9v o4giducld5qto
17 Sep 21
Current report (foreign)
6:08am
6-K
EX-99.1
0jqp6l
30 Aug 21
Current report (foreign)
9:12am
6-K
EX-99.1
v92hg
27 Apr 21
Current report (foreign)
10:30am
6-K
EX-99.2
cvxqfscnvbc3sxlhxu7
30 Mar 21
Current report (foreign)
12:00am
6-K
EX-99.3
8e3r09w41 003akgg89x
23 Dec 20
Current report (foreign)
10:47am
6-K
EX-99.4
dzn1mnk
23 Dec 20
Current report (foreign)
10:47am
6-K
EX-99.1
2vkn45jvwh1d
22 Dec 20
Current report (foreign)
6:09am
6-K
EX-99.1
c8nzro kaa14z
29 Sep 20
Current report (foreign)
6:21am
6-K
EX-99.2
3glui3wbse9zlga
31 Aug 20
Current report (foreign)
1:35pm