About.Ag

All About Silver - ... the buck stops here ...
[16 Sep 2022: Switched to dynamic web pages; some features/pages may be changed/gone]

SLV Bar Analysis for 14 Aug 2013 (from 07 Aug 2013 )

Quick Links: Warehouse Summary, Refinery Summary, Duplicate Serial Number & Weight, Bars Removed, Bars Added, Serial Number Changes, Statistics, Notes.

Warehouse Summary

Refiner	Start	End	Added	Removed	Serial Only Duplicates	Serial & Weight Duplicates
JPM New York (JPMN)	17181 bars 17,155,627.9 oz	17181 bars 17,155,627.9 oz	0 bars 0.0 oz	0 bars 0.0 oz	138	5
Johnson Matthey UK. Royston (JMUK)	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0	0
HSBC London (HSBC)	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0	0
Brinks London (BRIU)	178754 bars 174,602,989.1 oz	178754 bars 174,602,989.1 oz	0 bars 0.0 oz	0 bars 0.0 oz	17518	29
Brinks London C (BRIC)	60989 bars 59,123,619.7 oz	60989 bars 59,123,619.7 oz	0 bars 0.0 oz	0 bars 0.0 oz	5784	7
Brinks London A (BRIA)	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0	0
Via Mat International (VIAM)	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0	0
JPM London V (JPMV)	86226 bars 83,380,808.3 oz	86226 bars 83,380,808.3 oz	0 bars 0.0 oz	0 bars 0.0 oz	12955	14
JPM London A (JPMA)	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	0	0
Total (n/a)	343150 bars 334,263,045.0 oz	343150 bars 334,263,045.0 oz	0 bars 0.0 oz	0 bars 0.0 oz	72792	110

Refinery Summary

Refiner	# Bars	Ounces	Average Oz	Stand. Dev.	Serial Only Duplicates	Serial & Weight Duplicates	# Weights
AMax Inc. USA (AMA)	709 bars	707,472.6 Oz	997.8	31.4	1	0	505
Almalyk Uzbekistan (ALM)	2925 bars	2,826,816.6 Oz	966.4	20.1	224	1	838
Anhui Tongda Copper Ltd China (ANH)	2 bars	1,929.4 Oz	964.7	1.8	0	0	2
Argor-Heraeus SA Switzerland (ARG)	340 bars	326,523.6 Oz	960.4	25.3	0	0	286
Asahi Pretec Corp Japan (AS1)	1644 bars	1,604,533.6 Oz	976.0	8.3	0	0	347
Asarco Various (AS2)	3 bars	2,964.2 Oz	988.1	22.8	0	0	3
Asarco Inc Amarillo (AS3)	3939 bars	3,915,472.4 Oz	994.0	22.1	3	1	942
Aurubis AG Germany (AUR)	7156 bars	6,237,942.2 Oz	871.7	31.1	0	0	1432
Australian Gold Refineries (AUS)	2618 bars	1,964,645.3 Oz	750.4	29.1	4	0	1038
Boliden Mineral Sweden (BOL)	145 bars	149,511.3 Oz	1031.1	34.9	0	0	136
Britannia Refined Metals U.K (BRI)	23176 bars	22,487,143.1 Oz	970.3	57.7	8286	7	2906
Burma Mines (BUR)	14 bars	16,421.5 Oz	1173.0	19.1	0	0	14
Comptoir Lyon-Alemand FRA (COM)	976 bars	946,928.5 Oz	970.2	39.3	43	0	708
Cominco Ltd Tadanac Canada (CO1)	2036 bars	2,142,384.1 Oz	1052.3	18.1	12	0	706
Daye Non-Ferrous Metals China (DAY)	812 bars	788,305.3 Oz	970.8	25.8	1	0	541
Degussa Frankfurt (DEG)	6338 bars	6,678,574.6 Oz	1053.7	42.7	591	0	1724
Doe Run Peru SSL (DOE)	4648 bars	4,838,806.2 Oz	1041.1	32.8	1371	2	1172
Dowa Mining Japan (DOW)	1046 bars	1,024,134.5 Oz	979.1	20.3	0	0	567
ERANDS. Southern Copper Ltd. (ERA)	120 bars	128,143.9 Oz	1067.9	17.8	0	0	111
Engelhard Canada (EN1)	5 bars	4,998.4 Oz	999.7	29.8	0	0	5
Engelhard Clal Paris (EN2)	5 bars	5,193.2 Oz	1038.6	72.4	0	0	5
Engelhard UK (EN3)	96 bars	96,192.6 Oz	1002.0	49.8	0	0	95
Engelhard USA (EN4)	332 bars	331,877.5 Oz	999.6	35.5	0	0	293
Espanola Metales Spain (ESP)	368 bars	347,329.6 Oz	943.8	46.5	0	0	324
Great Wall Ref China (GRE)	1591 bars	1,557,763.8 Oz	979.1	17.4	483	0	549
Guangxi Chengyuan Mining China (GUA)	1611 bars	1,557,400.1 Oz	966.7	21.3	0	0	704
Handy Harman USA (HAN)	13330 bars	13,292,259.6 Oz	997.2	37.5	30	0	1837
Henan Yuguang Gold and Lead Co Ltd (HEN)	17256 bars	16,864,293.5 Oz	977.3	25.0	35	0	1390
Heraeus Germany (HER)	185 bars	176,705.3 Oz	955.2	42.1	0	0	137
Hoboken Belgium (HOB)	4438 bars	4,365,968.2 Oz	983.8	32.7	126	0	1313
Hunan Zhuzhou China (HUN)	320 bars	320,619.6 Oz	1001.9	17.3	0	0	266
Inco ltd, Canada (INC)	700 bars	729,075.3 Oz	1041.5	27.1	6	0	516
Industrial Minera Mexico (IND)	777 bars	818,595.5 Oz	1053.5	29.2	2	0	541
Inner Mongolia Qiankun Gold & Silver (INN)	15769 bars	15,473,230.4 Oz	981.2	22.7	4651	7	1368
JBR Recovery UK (JBR)	883 bars	1,002,477.0 Oz	1135.3	75.5	0	0	648
Jiangxi Copper Co Ltd (JIA)	6226 bars	6,375,232.6 Oz	1024.0	30.7	0	0	1352
John Betts UK (JO1)	273 bars	294,853.5 Oz	1080.0	71.4	0	0	244
Johnson Matthey Canada (JO3)	216 bars	217,490.9 Oz	1006.9	33.7	0	0	197
Johnson Matthey UK (JO4)	2364 bars	2,358,278.6 Oz	997.6	48.3	1	0	1217
Johnson Matthey USA (JO6)	6231 bars	6,186,001.2 Oz	992.8	36.3	3	0	1538
Johnson Matthey USA (JO5)	12419 bars	12,266,679.9 Oz	987.7	31.6	138	5	1626
JSC Ekaterinburg Non-Ferrous Metals (JSC)	360 bars	350,972.4 Oz	974.9	22.7	0	0	291
KGHM Poland (KGH)	9963 bars	10,079,772.9 Oz	1011.7	15.8	1734	6	896
Kazzinc. Kazakhstan (former) (KAZ)	1014 bars	982,720.5 Oz	969.2	20.4	0	0	560
Kazakhmys PLC Kazakhstan (KA2)	3054 bars	2,968,336.5 Oz	972.0	19.7	0	0	817
Kennecott Copper USA (KEN)	353 bars	361,081.1 Oz	1022.9	43.0	0	0	316
Korea Zinc Co Ltd (KOR)	6245 bars	6,101,526.1 Oz	977.0	21.5	0	0	1060
Krasnoyarsk Russia (KRA)	13386 bars	12,769,028.6 Oz	953.9	19.8	69	0	1028
LS-Nikko Copper Ltd Korea (LSN)	648 bars	622,599.8 Oz	960.8	25.8	0	0	484
Matsuda Sangyo (MAT)	601 bars	580,480.0 Oz	965.9	19.2	0	0	402
Met Precieux Switzerland (ME1)	452 bars	440,953.0 Oz	975.6	39.0	1	0	395
Met-Mex Penoles Mexico (ME4)	11287 bars	11,820,868.0 Oz	1047.3	21.0	677	1	1016
Min Met Penarroya Spain (MI1)	86 bars	81,439.6 Oz	947.0	48.6	0	0	83
Mitsui Mining Japan (MI3)	909 bars	869,921.2 Oz	957.0	21.9	0	0	556
Mitsubishi Materials Corporation (MI4)	5223 bars	5,070,190.9 Oz	970.7	20.8	0	0	985
Neimenggu Ref China (NEI)	321 bars	333,008.0 Oz	1037.4	23.5	94	2	255
Nippon Mining Japan (NIP)	3683 bars	3,434,300.1 Oz	932.5	13.1	62	0	642
Noranda Canada (NO1)	6594 bars	6,683,498.6 Oz	1013.6	29.8	122	0	1349
Noranda Canada (NO2)	30 bars	29,738.3 Oz	991.3	26.3	0	0	30
Nordeutsche Germany (NO4)	21960 bars	19,003,224.6 Oz	865.4	44.5	0	0	2210
Novosibrisk Refinery Russia (NO5)	416 bars	406,778.8 Oz	977.8	19.0	0	0	328
OJSC Kolyma (OJS)	7409 bars	7,085,851.2 Oz	956.4	20.8	0	0	1059
Pamp Sa Switzerland (PAM)	3 bars	2,679.9 Oz	893.3	4.2	0	0	3
Port Pirie(Zinifex,Pasminco,Broken Hill (POR)	169 bars	156,064.6 Oz	923.5	70.5	0	0	159
Prioksky Russia (PRI)	5343 bars	5,154,739.3 Oz	964.8	22.3	25	0	1024
Rand Refinery Ltd (RAN)	149 bars	169,653.8 Oz	1138.6	37.2	0	0	145
Real del Monty Pac'a Mexico (REA)	488 bars	514,371.4 Oz	1054.0	36.9	0	0	403
Royal Canadian Mint (ROY)	26 bars	24,838.5 Oz	955.3	65.8	0	0	26
Russian State Refineries (RUS)	44876 bars	42,986,087.0 Oz	957.9	22.0	9183	11	1262
Sheffield Smelting Co UK (SH1)	427 bars	424,872.6 Oz	995.0	49.0	1	0	382
Shenzhen Zhongjin Co Ltd China (SH2)	1266 bars	1,251,867.1 Oz	988.8	7.6	1	0	303
Shui Kou Shan Mining China (SH3)	4278 bars	4,308,358.8 Oz	1007.1	28.5	312	0	1187
Shyolkovsky Russia (SH4)	586 bars	557,157.8 Oz	950.8	16.3	0	0	386
Shandong Zhaojin Refinery Ltd (SH5)	432 bars	409,418.9 Oz	947.7	23.3	0	0	342
Solar Applied Materials Corp Taiwan (SOL)	21597 bars	21,407,097.9 Oz	991.2	22.5	1058	0	1259
Sumitomo Corp Japan (SUM)	1953 bars	1,909,472.4 Oz	977.7	16.1	24	0	633
Sunshine (SUN)	14 bars	14,040.9 Oz	1002.9	21.4	0	0	14
Tanaka Kikinzoku Japan (TAN)	2 bars	2,136.7 Oz	1068.3	13.4	0	0	2
Toho Zinc Japan (TOH)	2946 bars	2,835,907.9 Oz	962.6	21.0	10	0	862
Tongling Nonferrous Metals China (TON)	5809 bars	5,650,982.0 Oz	972.8	22.5	969	2	1020
Trepca Yugoslavia (TRE)	95 bars	90,598.6 Oz	953.7	30.9	0	0	92
U.S Assay Office (USA)	186 bars	196,414.8 Oz	1056.0	37.8	0	0	167
Uralelectromed Russia. YA (URA)	636 bars	610,337.9 Oz	959.7	18.6	0	0	424
W Canning UK (WCA)	64 bars	69,652.7 Oz	1088.3	55.5	0	0	64
Yunnan Copper Ind' Ltd China (YUN)	12185 bars	12,449,120.0 Oz	1021.7	24.8	6042	10	1309
Zaklady Met Trzebina Poland (ZAK)	372 bars	345,087.9 Oz	927.7	26.7	1	0	310

Duplicate Serial Numbers & Weights

Refiner	Serial	Fineness	Weight	Location
ALM	937	9999	964.6	JPMV, JPMV
AS3	146230	9990	997.8	BRIU, BRIU
BRI	1107	9990	934.3	JPMV, JPMV
BRI	5394	9990	978.9	BRIU, BRIU
BRI	5668	9990	925.2	BRIU, JPMV
BRI	8021	9990	906.5	JPMV, JPMV
BRI	V2029	9990	977.3	BRIU, BRIU
BRI	W10613	9990	956.3	BRIU, BRIU
BRI	W11430	9990	1,034.0	BRIU, BRIU
DOE	544	9999	1,050.4	BRIU, JPMV
DOE	873	9999	1,027.4	BRIU, JPMV
INN	601598	9999	987.0	BRIU, BRIU
INN	602877	9990	992.3	BRIU, BRIC
INN	603289	9999	969.1	BRIC, JPMV
INN	603324	9990	963.9	BRIU, JPMV
INN	604680	9990	990.3	JPMV, JPMV
INN	609927	9990	980.8	BRIU, JPMV
INN	610224	9999	1,005.7	BRIU, JPMV
JO5	CL279990		1,028.6	JPMN, JPMN
JO5	CL279990		953.0	JPMN, JPMN
JO5	CL279990		959.0	JPMN, JPMN
JO5	CL279990		982.6	JPMN, JPMN
JO5	CL299990		974.0	JPMN, JPMN
KGH	1758	9999	1,021.7	BRIU, BRIC
KGH	3107	9999	1,011.7	BRIU, JPMV
KGH	3152	9999	1,009.8	BRIU, JPMV
KGH	3188	9999	1,025.7	BRIU, JPMV
KGH	5447	9999	1,022.6	BRIU, JPMV
KGH	8959	9999	1,015.3	BRIU, BRIC
ME4	36860	9999	1,053.2	BRIU, JPMV
NEI	24	9999	1,054.1	BRIU, BRIU
NEI	67	9999	1,038.1	BRIU, BRIU
RUS	13411	9999	959.9	BRIU, BRIU
RUS	1423	9999	956.2	BRIU, BRIU
RUS	1453	9999	947.8	BRIU, BRIU
RUS	1641	9999	937.8	BRIU, BRIU
RUS	2209	9999	974.5	BRIU, BRIU
RUS	22211	9998	970.5	BRIU, BRIU
RUS	2916	9998	953.4	BRIU, BRIU
RUS	2985	9999	956.3	BRIU, BRIU
RUS	5654	9999	952.6	BRIU, BRIU
RUS	M1343	9999	944.0	JPMV, JPMV
RUS	N2311	9999	950.7	BRIU, JPMV
TON	2969	9999	945.7	JPMV, JPMV
TON	3404	9999	979.8	BRIU, JPMV
YUN	1178	9999	1,026.6	BRIU, BRIC
YUN	1441	9999	1,022.3	BRIU, BRIC
YUN	1705	9999	1,015.5	BRIU, BRIC
YUN	2015	9999	1,027.0	BRIU, BRIC
YUN	2516	9999	988.6	BRIC, BRIC
YUN	263	9999	1,036.1	BRIU, BRIU
YUN	2708	9999	1,007.7	BRIU, BRIC
YUN	375	9999	1,027.8	BRIU, JPMV
YUN	79	9999	1,025.8	BRIC, JPMV
YUN	823	9999	1,042.7	BRIC, BRIC

Bars Removed (Refinery Summary):

Refiner	# Bars	# Ounces

Bars Removed:

Refiner	Serial	Fineness	Weight	Location	First Seen

The next table shows the dates that bars were first seen, and how many ounces of silver removed were added on those dates.
For example, '19Nov10 86922' means that 86,922 of the ounces removed were bars that were first seen in SLV on November 19, 2010.

Date Ounces

Bars Added (Refinery Summary):

Refiner	# Bars	# Ounces

Bars Added:

Refiner	Serial	Fineness	Weight	Location

Date Ounces

Serial Number Changes:

Refiner	Old Serial	New Serial	Fineness	Weight	Location

Stats

# Bars:	343150
# Ounces:	334263045.0
Average Bar Weight:	974.1 ounces
Lightest bar:	516 ounces.
Heaviest bar:	1243 ounces.
Shortest Serial Length:	1
Longest Serial Length:	11
Duplicate Serial & Weight Count:	110 (about 1 in 3119 bars)
Duplicate Serial Only Count:	72792 (about 1 in 4.7 bars)
Duplicate Bars With Exact Weight:	1 in 661 duplicate bars
Total Weights:	4948
Number of Refiners:	86

General Notes

'Refiner Change' means that there was a change to the refiner of a bar (such as 'Engelhard US' to 'Engelhard UK').
'Serial Change' means that there was a change to the serial number of a bar (such as '2281' to '2008-2281').
'Stand. Dev.' is the standard deviation of the weights of the bars of a manufacturer. The lower the number, the closer the bars are in weight to each other.
LBMA Good Delivery rules prior to 2008 allowed bars weighing 500-1250 troy ounces. Currently, it is 750-1100 ounces, with 900-1050 recommended.
COMEX allows bars from 900 to 1,100 ounces (COMEX rules are not used for SLV, LBMA are).
Silver is added to or removed from SLV in amounts of slightly less than 50,000 ounces in exchange for a 'basket' of exactly 50,000 shares.

Notes on Duplicates

Duplicate Serial Numbers are acceptable per LBMA rules, if the year of manufacture is different.
'Duplicate Serial Only' means that the refiner and serial number of two or more bars match, but are different weights (almost certainly two different years, which is OK).
'Duplicate Serial & Weight' means that the refiner, serial number, and weight of two or more bars match (which is OK if the years are different).
The SLV bar lists do not have a space for the year, unless it is part of the serial number, which accounts for the seemingly duplicate entries.
The proportion of duplicate entries per warehouse does not seem unusual.
The lack of duplicate serials with some refiners, and large amounts at others, helps confirm that many refiners never duplicate serial numbers, even in different years.
The proportion of 'refiner+serial+weight' dupes to 'refiner+serial' dupes appears normal, given the distribution of weights.
With 343150 bars, occasional accounting errors are inevitable.