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SLV Bar Analysis for 18 Jan 2012 (from 11 Jan 2012 )

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
Johnson Matthey UK. Royston (JMUK)	11056 bars 10,861,359.8 oz	11056 bars 10,861,359.8 oz	0 bars 0.0 oz	0 bars 0.0 oz	16	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)	89453 bars 86,711,033.7 oz	89453 bars 86,711,033.7 oz	0 bars 0.0 oz	0 bars 0.0 oz	6529	7
Brinks London A (BRIA)	31238 bars 30,557,914.5 oz	31238 bars 30,557,914.5 oz	0 bars 0.0 oz	0 bars 0.0 oz	5910	13
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)	80694 bars 78,537,689.8 oz	80694 bars 78,537,689.8 oz	0 bars 0.0 oz	0 bars 0.0 oz	13852	18
JPM London A (JPMA)	100080 bars 99,302,865.1 oz	100080 bars 99,302,865.1 oz	0 bars 0.0 oz	0 bars 0.0 oz	13815	25
Total (n/a)	312521 bars 305,970,862.9 oz	312521 bars 305,970,862.9 oz	0 bars 0.0 oz	0 bars 0.0 oz	80246	128

Refinery Summary

Refiner	# Bars	Ounces	Average Oz	Stand. Dev.	Serial Only Duplicates	Serial & Weight Duplicates	# Weights
AMax Inc. USA (AMA)	732 bars	730,380.5 Oz	997.8	31.4	1	0	515
Almalyk Uzbekistan (ALM)	3121 bars	3,014,887.5 Oz	966.0	20.0	255	1	845
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)	1290 bars	1,260,467.8 Oz	977.1	8.9	0	0	343
Asarco Various (AS2)	27 bars	26,611.5 Oz	985.6	18.8	0	0	27
Asarco Inc Amarillo (AS3)	4131 bars	4,106,079.3 Oz	994.0	22.2	3	1	954
Australian Gold Refineries (AUS)	3332 bars	2,684,212.9 Oz	805.6	118.3	14	0	1522
Britannia Refined Metals U.K (BRI)	29570 bars	28,566,571.7 Oz	966.1	55.4	12066	18	2966
Burma Mines (BUR)	14 bars	16,421.5 Oz	1173.0	19.1	0	0	14
Comptoir Lyon-Alemand FRA (COM)	1106 bars	1,073,411.7 Oz	970.5	39.3	59	0	773
Cominco Ltd Tadanac Canada (CO1)	1110 bars	1,165,675.6 Oz	1050.2	19.4	15	0	565
Daye Non-Ferrous Metals China (DAY)	556 bars	541,231.6 Oz	973.4	26.5	1	0	429
Degussa Frankfurt (DEG)	7529 bars	7,931,053.0 Oz	1053.4	42.4	794	0	1801
Doe Run Peru SSL (DOE)	5448 bars	5,674,136.1 Oz	1041.5	31.1	1361	2	1197
Dowa Mining Japan (DOW)	989 bars	966,566.1 Oz	977.3	21.8	0	0	593
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)	99 bars	99,270.5 Oz	1002.7	49.2	0	0	98
Engelhard USA (EN4)	365 bars	364,880.4 Oz	999.7	35.7	0	0	317
Espanola Metales Spain (ESP)	368 bars	347,329.6 Oz	943.8	46.5	0	0	324
Great Wall Ref China (GRE)	2073 bars	2,022,070.4 Oz	975.4	15.2	351	0	555
Guangxi Chengyuan Mining China (GUA)	1362 bars	1,318,725.2 Oz	968.2	20.8	0	0	642
Handy Harman USA (HAN)	13730 bars	13,690,515.2 Oz	997.1	37.5	31	0	1845
Henan Yuguang Gold and Lead Co Ltd (HEN)	17249 bars	16,879,809.9 Oz	978.6	23.0	38	0	1156
Heraeus Germany (HER)	207 bars	195,801.5 Oz	945.9	48.8	0	0	158
Hoboken Belgium (HOB)	4826 bars	4,749,854.5 Oz	984.2	32.9	151	0	1340
Hunan Zhuzhou China (HUN)	1956 bars	1,974,410.6 Oz	1009.4	10.9	0	0	470
Inco ltd, Canada (INC)	727 bars	757,162.3 Oz	1041.5	27.0	6	0	529
Industrial Minera Mexico (IND)	812 bars	855,413.1 Oz	1053.5	28.8	2	0	554
Inner Mongolia Qiankun Gold & Silver (INN)	15066 bars	14,782,838.3 Oz	981.2	23.1	4092	6	1382
JBR Recovery UK (JBR)	763 bars	893,627.8 Oz	1171.2	27.9	0	0	526
Jiangxi Copper Co Ltd (JIA)	8264 bars	8,434,980.2 Oz	1020.7	35.4	60	0	1568
John Betts UK (JO1)	90 bars	105,599.5 Oz	1173.3	34.4	0	0	85
Johnson Matthey Canada (JO3)	228 bars	229,034.1 Oz	1004.5	34.6	0	0	208
Johnson Matthey UK (JO4)	12811 bars	12,632,487.3 Oz	986.1	43.7	35	0	2097
Johnson Matthey USA (JO5)	4424 bars	4,323,262.5 Oz	977.2	30.7	3	0	1275
JSC Ekaterinburg Non-Ferrous Metals (JSC)	230 bars	223,771.2 Oz	972.9	22.4	0	0	199
KGHM Poland (KGH)	8937 bars	9,043,035.3 Oz	1011.9	15.7	1371	6	872
Kazzinc. Kazakhstan (KAZ)	809 bars	784,270.3 Oz	969.4	19.2	0	0	487
Kennecott Copper USA (KEN)	416 bars	425,510.8 Oz	1022.9	41.4	0	0	368
Korea Zinc Co Ltd (KOR)	4470 bars	4,371,227.0 Oz	977.9	22.7	0	0	1024
Krasnoyarsk Russia (KRA)	11741 bars	11,158,740.7 Oz	950.4	21.5	152	0	1040
Matsuda Sangyo (MAT)	645 bars	621,234.1 Oz	963.2	19.4	0	0	432
Met Precieux Switzerland (ME1)	483 bars	471,072.8 Oz	975.3	38.7	2	0	413
Met-Mex Penoles Mexico (ME2)	10268 bars	10,755,031.1 Oz	1047.4	20.8	647	1	1015
Min Met Penarroya Spain (MI1)	86 bars	81,439.6 Oz	947.0	48.6	0	0	83
Mitsui Mining Japan (MI3)	1177 bars	1,125,758.4 Oz	956.5	20.0	0	0	604
Mitsubishi Materials Corporation (MI4)	5381 bars	5,222,604.2 Oz	970.6	20.7	0	0	983
Neimenggu Ref China (NEI)	161 bars	166,404.7 Oz	1033.6	26.9	0	0	145
Nippon Mining Japan (NIP)	2905 bars	2,718,031.5 Oz	935.6	13.0	119	1	612
Noranda Canada (NO1)	6873 bars	6,970,391.2 Oz	1014.2	29.9	134	0	1364
Nordeutsche Germany (NO4)	9964 bars	8,691,003.3 Oz	872.2	59.9	0	0	2024
Novosibrisk Refinery Russia (NO5)	376 bars	368,658.7 Oz	980.5	17.4	0	0	297
OJSC Kolyma (OJS)	7160 bars	6,850,636.7 Oz	956.8	20.8	0	0	1044
Pamp Sa Switzerland (PAM)	3 bars	2,679.9 Oz	893.3	4.2	0	0	3
Port Pirie(Zinifex,Pasminco,Broken Hill (POR)	663 bars	622,413.8 Oz	938.8	42.2	0	0	493
Prioksky Russia (PRI)	5442 bars	5,243,150.5 Oz	963.5	22.4	63	0	1028
Rand Refinery Ltd (RAN)	154 bars	175,443.3 Oz	1139.2	36.9	0	0	150
Real del Monty Pac'a Mexico (REA)	523 bars	550,271.8 Oz	1052.1	38.1	0	0	431
Royal Canadian Mint (ROY)	26 bars	24,838.5 Oz	955.3	65.8	0	0	26
Russian State Refineries (RUS)	46694 bars	44,643,125.4 Oz	956.1	21.3	12878	23	1250
Sheffield Smelting Co UK (SH1)	447 bars	444,339.5 Oz	994.0	48.9	1	0	400
Shenzhen Zhongjin Co Ltd China (SH2)	2323 bars	2,301,777.2 Oz	990.9	6.9	1	0	332
Shui Kou Shan Mining China (SH3)	5146 bars	5,187,867.0 Oz	1008.1	26.8	352	0	1190
Shyolkovsky Russia (SH4)	30 bars	28,554.5 Oz	951.8	17.4	0	0	30
Solar Applied Materials Corp Taiwan (SOL)	12090 bars	11,880,563.2 Oz	982.7	17.7	25	0	930
Sumitomo Corp Japan (SUM)	1837 bars	1,796,243.4 Oz	977.8	16.3	25	0	623
Tanaka Kikinzoku Japan (TAN)	2 bars	2,136.7 Oz	1068.3	13.4	0	0	2
Toho Zinc Japan (TOH)	2492 bars	2,402,289.5 Oz	964.0	21.0	0	0	837
Tongling Nonferrous Metals China (TON)	4706 bars	4,539,726.2 Oz	964.7	18.0	809	1	859
Trepca Yugoslavia (TRE)	96 bars	91,540.3 Oz	953.5	30.8	0	0	93
U.S Assay Office (USA)	189 bars	199,606.8 Oz	1056.1	37.9	0	0	169
Uralelectromed Russia. YA (URA)	708 bars	679,691.8 Oz	960.0	18.3	0	0	447
W Canning UK (WCA)	64 bars	69,652.7 Oz	1088.3	55.5	0	0	64
Yunnan Copper Ind' Ltd China (YUN)	10423 bars	10,651,007.4 Oz	1021.9	24.8	4205	4	1271
Zaklady Met Trzebina Poland (ZAK)	456 bars	422,483.6 Oz	926.5	26.7	1	0	357

Duplicate Serial Numbers & Weights

Refiner	Serial	Fineness	Weight	Location
ALM	937	9999	964.6	JPMV, JPMV
AS3	146230	9990	997.8	JPMA, JPMA
BRI	1107	9990	934.3	JPMV, JPMV
BRI	1118	9990	999.9	JPMV, JPMA
BRI	2247	9990	987.3	BRIA, JPMV
BRI	2278	9990	949.4	BRIA, JPMV
BRI	2318	9990	946.4	BRIA, JPMA
BRI	2943	9990	997.4	JPMV, JPMA
BRI	3491	9990	995.8	BRIA, JPMA
BRI	5394	9990	978.9	JPMA, JPMA
BRI	5668	9990	925.2	JPMV, JPMA
BRI	5764	9990	962.9	JPMA, JPMA
BRI	5785	9990	957.5	JPMV, JPMA
BRI	6996	9990	960.7	JPMA, JPMA
BRI	8021	9990	906.5	JPMV, JPMV
BRI	816	9990	940.2	BRIA, JPMV
BRI	942	9990	947.0	BRIA, JPMV
BRI	V2029	9990	977.3	JPMA, JPMA
BRI	W10613	9990	956.3	JPMA, JPMA
BRI	W11430	9990	1,034.0	JPMA, JPMA
DOE	544	9999	1,050.4	JPMV, JPMA
DOE	873	9999	1,027.4	JPMV, JPMA
INN	602877	9990	992.3	BRIU, BRIU
INN	603289	9999	969.1	BRIU, JPMV
INN	603324	9990	963.9	BRIU, JPMV
INN	604680	9990	990.3	JPMV, JPMV
INN	607230	9990	987.8	BRIA, JPMV
INN	609927	9990	980.8	BRIU, JPMV
KGH	1758	9999	1,021.7	BRIU, JPMA
KGH	3107	9999	1,011.7	JPMV, JPMA
KGH	3152	9999	1,009.8	JPMV, JPMA
KGH	3188	9999	1,025.7	JPMV, JPMA
KGH	5447	9999	1,022.6	JPMV, JPMA
KGH	8959	9999	1,015.3	BRIU, JPMA
ME2	36860	9999	1,053.2	JPMV, JPMA
NIP	9383	9999	940.8	BRIA, JPMA
RUS	1337	9999	939.1	BRIA, BRIA
RUS	1423	9998	956.2	JPMA, JPMA
RUS	1668	9999	954.4	BRIA, JPMA
RUS	1921	9999	937.8	BRIU, BRIA
RUS	20210	9999	951.5	BRIA, BRIA
RUS	2033	9999	946.9	BRIA, JPMA
RUS	2044	9999	976.8	BRIA, JPMA
RUS	2134	9999	962.7	BRIA, JPMA
RUS	21911	9999	957.7	BRIA, JPMA
RUS	2209	9999	974.5	JPMA, JPMA
RUS	22112	9999	968.1	BRIA, JPMV
RUS	22211	9999	970.5	JPMA, JPMA
RUS	2578	9999	931.7	BRIA, JPMV
RUS	2653	9999	943.2	BRIA, JPMA
RUS	2685	9999	940.7	BRIU, BRIA
RUS	28410	9999	950.5	BRIA, JPMV
RUS	2916	9998	953.4	JPMA, JPMA
RUS	2985	9999	956.3	JPMA, JPMA
RUS	3096	9999	944.9	BRIA, JPMV
RUS	39910	9999	948.0	BRIA, JPMA
RUS	5654	9999	952.6	JPMA, JPMA
RUS	M1343	9999	944.0	JPMV, JPMV
RUS	N2311	9999	950.7	JPMV, JPMA
TON	2969	9999	945.7	JPMV, JPMV
YUN	1441	9999	1,022.3	BRIU, BRIU
YUN	1705	9999	1,015.5	BRIU, BRIU
YUN	2015	9999	1,027.0	BRIU, BRIU
YUN	2569	9999	1,035.9	BRIA, JPMA

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

Serial Number Changes:

Refiner	Old Serial	New Serial	Fineness	Weight	Location

Stats

# Bars:	312521
# Ounces:	305970862.9
Average Bar Weight:	979.0 ounces
Lightest bar:	516 ounces.
Heaviest bar:	1243 ounces.
Shortest Serial Length:	1
Longest Serial Length:	11
Duplicate Serial & Weight Count:	128 (about 1 in 2441 bars)
Duplicate Serial Only Count:	80246 (about 1 in 3.9 bars)
Duplicate Bars With Exact Weight:	1 in 626 duplicate bars
Total Weights:	4953
Number of Refiners:	78

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 312521 bars, occasional accounting errors are inevitable.