Bulk data set export and import technical specification

Trade data

This page provides the technical specifications of the bulk data sets we publish. It includes the format, structure, and content of each bulk data set file. These data sets are designed for bulk data users.

This should be used together with the data dictionary information.

The technical specification is also available in spreadsheet format by
downloading Bulk data set technical specifications (ODS, 53 KB).

Control files

Header record

Reference	From	To	Level	Item Name	Type	Size	Picture	Value range
1	1	182	1	MK-HEADER-RECORD
2	1	9	10	MK-COMCODE	D	9	9(9)	9 digits
3	10	10	10	DELIMITER	D	1	X	“|”
4	11	11	10	FILLER	D	1	X	Low Values
5	12	12	10	DELIMITER	D	1	X	“|”
6	13	17	10	FILLER	D	5	X(5)	Low Values
7	18	18	10	DELIMITER	D	1	X	“|”
8	19	23	10	FILLER	D	5	X(5)	Low Values
9	24	24	10	DELIMITER	D	1	X	“|”
10	25	29	10	FILLER	D	5	X(5)	Low Values
11	30	30	10	DELIMITER	D	1	X	“|”
12	31	35	10	FILLER	D	5	X(5)	Low Values
13	36	36	10	DELIMITER	D	1	X	“|”
14	37	37	10	FILLER	D	1	X	Low Values
15	38	38	10	DELIMITER	D	1	X	“|”
16	39	43	10	FILLER	D	5	X(5)	Low Values
17	44	44	10	DELIMITER	D	1	X	“|”
18	45	45	10	FILLER	D	1	X	Low Values
19	46	46	10	DELIMITER	D	1	X	“|”
20	47	49	10	FILLER	D	3	XXX	Low Values
21	50	50	10	DELIMITER	D	1	X	“|”
22	51	53	10	FILLER	D	3	XXX	Low Values
23	54	54	10	DELIMITER	D	1	X	“|”
24	55	57	10	FILLER	D	3	XXX	Low Values
25	58	58	10	DELIMITER	D	1	X	“|”
26	59	60	10	FILLER	D	2	XX	Low Values
27	61	61	10	DELIMITER	D	1	X	“|”
28	62	63	10	FILLER	D	2	XX	Low Values
29	64	64	10	DELIMITER	D	1	X	“|”
30	65	66	10	FILLER	D	2	XX	Low Values
31	67	67	10	DELIMITER	D	1	X	“|”
32	68	69	10	FILLER	D	2	XX	Low Values
33	70	70	10	DELIMITER	D	1	X	“|”
34	71	71	10	FILLER	D	1	X	Low Values
35	72	72	10	DELIMITER	D	1	X	“|”
36	73	73	10	FILLER	D	1	X	Low Values
37	74	74	10	DELIMITER	D	1	X	“|”
38	75	75	10	FILLER	D	1	X	Low Values
39	76	76	10	DELIMITER	D	1	X	“|”
40	77	77	10	FILLER	D	1	X	Low Values
41	78	78	10	DELIMITER	D	1	X	“|”
42	79	79	10	FILLER	D	1	X	Low Values
43	80	80	10	DELIMITER	D	1	X	“|”
44	81	81	10	FILLER	D	1	X	Low Values
45	82	82	10	DELIMITER	D	1	X	“|”
46	83	83	10	FILLER	D	1	X	Low Values
47	84	84	10	DELIMITER	D	1	X	“|”
48	85	85	10	FILLER	D	1	X	Low Values
49	86	86	10	DELIMITER	D	1	X	“|”
50	87	89	10	FILLER	D	1	XXX	Low Values
51	90	90	10	DELIMITER	D	1	X	“|”
52	91	93	10	FILLER	D	1	XXX	Low Values
53	94	94	10	DELIMITER	D	1	X	“|”
54	95	151	10	FILLER	D	57	X(57)	Low Values
55	152	152	10	DELIMITER	D	1	X	“|”
56	153	174	10	MK-FILENAME	D	22	X(22)	22 characters
57	175	175	10	DELIMITER	D	1	X	“|”
58	176	179	10	MK-YEAR	D	4	9(4)	4 digits
59	180	180	10	DELIMITER	D	1	X	“|”
60	181	182	10	MK-MONTH	D	2	99	2 digits

Data record

Reference	From	To	Level	Item Name	Type	Size	Picture	Value Range
1	1	204	1	MK-DATA-RECORD
2	1	85	5	MK-NUMERIC-CONSTANTS	D	82
3	1	9	10	MK-COMCODE	D	9	9(9)	9 digits
4	10	10	10	DELIMITER	D	1	X	“|”
5	11	11	10	MK-INTRA-EXTRA-IND	D	1	9	1 digit
6	12	12	10	DELIMITER	D	1	X	“|”
7	13	18	10	MK-INTRA-MMYY-ON	D
8	13	14	15	MK-INTRA-MM-ON	D	2	99	2 digits
9	15	15	15	MK-INTRA-DELIMITER	D	1	X	“/”
10	16	17	15	MK-INTRA-YY-ON	D	2	99	2 digits
11	18	18	15	DELIMITER	D	1	X	“|”
12	19	24	10	MK-INTRA-MMYY-OFF	D
13	19	20	15	MK-INTRA-MM-OFF	D	2	99	2 digits
14	21	21	15	MK-INTRA-DELIMITER	D	1	X	“/”
15	22	23	15	MK-INTRA-YY-OFF	D	2	99	2 digits
16	24	24	15	DELIMITER	D	1	X	“|”
17	25	30	15	MK-EXTRA-MMYY-ON	D
18	25	26	15	MK-EXTRA-MM-ON	D	2	99	2 digits
19	27	27	15	MK-EXTRA-DELIMITER	D	1	X	“/”
20	28	29	15	MK-EXTRA-YY-ON	D	2	99	1 digit
21	30	30	15	DELIMITER	D	1	X	“|”
22	31	36	10	MK-EXTRA-MMYY-OFF	D
23	31	32	15	MK-EXTRA-MM-OFF	D	2	99	2 digits
24	33	33	15	MK-EXTRA-DELIMITER	D	1	X	“/”
25	34	35	15	MK-EXTRA-YY-OFF	D	2	99	2 digits
26	36	36	15	DELIMITER	D	1	X	“|”
27	37	37	10	MK-NON-TRADE-ID	D	1	9	1 digit
28	38	38	10	DELIMITER	D	1	X	“|”
29	39	43	10	MK-SITC-NO	D	5	9(5)	5 digits
30	44	44	10	DELIMITER	D	1	X	“|”
31	45	45	10	MK-SITC-IND	D	1	9	1 digit
32	46	46	10	DELIMITER	D	1	X	“|”
33	47	49	10	MK-SITC-CONV-A	D	3	9(3)	3 digits
34	50	50	10	DELIMITER	D	1	X	“|”
35	51	53	10	MK-SITC-CONV-B	D	3	9(3)	3 digits
36	54	54	10	DELIMITER	D	1	X	“|”
37	55	57	10	MK-CN-Q2	D	3	9(3)	3 digits
38	58	58	10	DELIMITER	D	1	X	“|”
39	59	60	10	MK-SUPP-ARRIVALS	D	2	S9	Leading Sign+1 digit
40	61	61	10	DELIMITER	D	1	X	“|”
41	62	63	10	MK-SUPP-DESPATCHES	D	2	S9	Leading Sign+1 digit
42	64	64	10	DELIMITER	D	1	X	“|”
43	65	66	10	MK-SUPP-IMPORTS	D	2	S9	Leading Sign+1 digit
44	67	67	10	DELIMITER	D	1	X	“|”
45	68	69	10	MK-SUPP-EXPORTS	D	2	S9	Leading Sign+1 digit
46	70	70	10	DELIMITER	D	1	X	“|”
47	71	85	10	MK-AGGREGATION-INDS
48	71	71	15	MK-SUB-GROUP-ARR	D	1	9	1 digit
49	72	72	15	DELIMITER	D	1	X	“|”
50	73	73	15	MK-ITEM-ARR	D	1	9	1 digit
51	74	74	15	DELIMITER	D	1	X	“|”
52	75	75	15	MK-SUB-GROUP-DESP	D	1	9	1 digit
53	76	76	15	DELIMITER	D	1	X	“|”
54	77	77	15	MK-ITEM-DESP	D	1	9	1 digit
55	78	78	15	DELIMITER	D	1	X	“|”
56	79	79	15	MK-SUB-GROUP-IMP	D	1	9	1 digit
57	80	80	15	DELIMITER	D	1	X	“|”
58	81	81	15	MK-ITEM-IMP	D	1	9	1 digit
59	82	82	15	DELIMITER	D	1	X	“|”
60	83	83	15	MK-SUB-GROUP-EXP	D	1	9	1 digit
61	84	84	15	DELIMITER	D	1	X	“|”
62	85	85	15	MK-ITEM-EXP	D	1	9	1 digit
63	86	204	5	MK-ALPHA-CONSTANTS
64	86	86	10	DELIMITER	D	1	X	“|”
65	87	89	10	MK-QTY1-ALPHA	D	3	XXX	3 characters
66	90	90	10	DELIMITER	D	1	X	“|”
67	91	93	10	MK-QTY2-ALPHA	D	3	XXX	3 characters
68	94	94	10	DELIMITER	D	1	X	“|”
69	95	155	10	MK-COMMODITY-ALPHA-1	D	61	X(61)	61 characters
70	156	156	10	DELIMITER	D	1	X	“|”
71	157	204	10	MK-COMMODITY-ALPHA-2	D	48	X(48)	48 characters

Trailer record

Reference	From	To	Level	Item Name	Type	Size	Picture	Value Range
1	1	159	1	MK-TRAILER-RECORD
2	1	151	5	FILLER	D	151	X(151)	151 characters
3	152	152	5	DELIMITER	D	1	X	“|”
4	153	159	5	MK-HEADING-COUNT	D	7	9(7)	7 digits

BDS exports and imports trade data

Exports and Imports: BDSExpYYMM and BDSImpYYMM

Reference	From	To	Field name	Data dictionary field name	Full name	Description	Type	Field size	User notes, explanation and hyperlink
1	1	6	PERREF	PERIOD-REFERENCE	Period Reference	Identifies the month of account of an item in format YYYYMM. For non-amendment records this will be the same as the file month; for amendment records and late supplementary declarations it will be the month to which the amendment or supplementary declaration relates.	Character	6	This variable is always completed
2	7	7	TYPE		Type	Identifies the type of record relating to trade: 1 - Declared trade 2 - Below Threshold Trade Allocation (BTTA) 3 - HS2 non response estimates 4 - SITC2 non response estimates	Character	1	This variable is always completed
3	8	13	MONTHAC	ACCOUNT-CCYY, ACCOUNT-MM	Month of Account	Identifies the year and month the data file was created.	Character	6	This variable is always completed
4	14	21	COMCODE	COMCODE	Comcode	8 digit commodity code found in the Combined Nomenclature	Character	8	This variable is not always complete. For where variable 'Type' is: 1 - Declared trade this will contain full 8 digit commodity code, 2 - BTTA, this will contain only 2 digits (product chapter) followed by six dashes, 3 - HS2 non response, this will contain only 2 digits (product chapter) followed by six blank spaces, 4 - SITC2 non response, this will contain eight blank spaces (not available)  uktradeinfo.com/find-commodity-data/
5	22	26	SITC	SITC	SITC	Standard International Trade Classification - a United Nations commodity classification system based on a 5 digit numeric code.	Character	5	This variable is not always complete. For where variable 'Type' is: 1 - Declared trade this will contain full 5 digit SITC product code, 2 - BTTA, this will contain only 2 digits followed by three dashes, 3 - HS2 non response, this will contain five blank spaces (not available) 4 - SITC2 non response, this will contain only 3 digits followed by two blank spaces United Nations Statistics Division - Trade Statistics
6	27	29	COD-SEQ	COD-SEQUENCE	Country of Destination, Dispatch or Consignment	Numeric code for Country of Destination or Country of Dispatch.	Character	3	For Imports this is the Country of Dispatch. For Exports this is the country of Destination. Numeric sequence codes align predominantly with the Eurostat published geonomenclature. European business statistics geonomenclature applicable to European statistics on international trade in goods
7	30	31	COD-ALPHA	COD-ALPHA	Country of Destination, Dispatch or Consignment	Alpha code for Country of Destination (Exports/Dispatches) or Country of Dispatch/Consignment (Imports/Arrivals)	Character	2	For Imports this is the Country of Dispatch. For Exports this is the country of Destination. Alpha codes align predominantly with the Eurostat published geonomenclature. Except for code 'ZY', which relates to 'countries not specified in the context of non-EU trade'. Alpha sequence = 958 European business statistics geonomenclature applicable to European statistics on international trade in goods
8	32	34	PORT-SEQ	PORT-SEQUENCE	Port code	Numeric code for port of import/export. NOTE: This is actually derived from the 'location of goods' as collected on customs declarations in data element 5/23. But it serves as a proxy for 'Port'.	Character	3	Internal HMRC numeric codification of port, an alternative to the Port Alpha code. As internal codes for HMRC management information, a port sequence code list is not published. Furthrer details relating to data element 5/23 can be found on GOV.UK Group 5: Dates, Times, Periods, Places, Countries and Regions - GOV.UK
9	35	37	PORT-CODE	PORT-ALPHA	Port code	Alpha code for the port of import/export. NOTE: This is actually the 'location of goods' as collected on customs declarations in data element 5/23. But it serves as a proxy for 'Port'.	Character	3	Alpha codes align to the 3-character freight location codes for CHIEF; and a 3-character substring of the 'location code' in the Customs Declaration System (CDS) data element 5/23. NOTE: Port is not always completed. It is not mandatory on all customs declaration i.e. goods being released from a customs warehouse into free circulation. Dummy codes are infilled in certain circumstances. For example, 'low value aggregate' trade collected from customs declarations has the dummy code 'ZYY' if trade is with a non-EU country, or 'QVV' if with an EU country. It is also not collected for any NI-EU movements under the Intrastat system. For where variable 'Type' is: 1 - Declared trade - if from Intrastat this will be infilled with a dummy code 'zzz', 2 - BTTA, this will contain 'zzz', 3 - HS2 non response, this will contain dummy code 'QVV' 4 - SITC2 non response, this will containdummy code 'QVV' UK ports and port codes - GOV.UK
10	38	40	COO-SEQ	COO-SEQ	Country of Origin	Numeric code for Country of Origin.	Character	3	This variable is not always complete. This variable is collected on customs declarations for imports; and Intrastat declarations for exports / dispatches only. It is not collected for Intrastat imports / arrivals, or any exports as collected on Customs declarations. In these cases it is left as three blank spaces.   For all non-response estimates it is infilled with the dummy code '959' For BTTA estimates it is left as three blank spaces Notice 60: Intrastat general guide
11	41	42	COO-ALPHA	COO-ALPHA	Country of Origin	Alpha code for Country of Origin. The Country of Origin is the country where the goods were originally produced, which may be different from the Country of Dispatch/Consignment (Country of Origin will be different from Country of Dispatch/Consignment if goods have been sold to another country before being consigned to the UK).	Character	2	This variable is not always complete. This variable is collected on customs declarations for imports; and Intrastat declarations for exports / dispatches only. It is not collected for Intrastat imports / arrivals, or any exports as collected on Customs declarations. In these cases it is left as two blank spaces.   For all non-response estimates it is infilled with the dummy code 'QV' For BTTA estimates it is left as two blank spaces Notice 60: Intrastat general guide
12	43	44	MODE-OF-TRANSPORT	MODE-OF-TRANSPORT	Mode of Transport	Mode of transport by which goods leave or arrive in the UK. 10 - sea transport (not vehicle on ferry) 20 - rail transport 30 - road transport 40 - air transport 50 - mail 60 - Roll on Roll off (RORO) 70 - fixed installations, e.g. pipeline and Channel Tunnel 80 - inland waterway transport 90 - own propulsion, e.g. imported vehicle driven across land boundary	Character	2	This variable is not always complete. It is not collected on any intrastat declarations. It is only available where data has been sourced from customs declarations. See data element 7/4 - Mode of Transport at the Border. For BTTA estimates it is infilleed with two blank spaces For all non-response estimates it is infilled with the value of '90' Group 7: Transport Information (Modes, Means and Equipment) - GOV.UK
13	45	56	STAT-VALUE	STAT-VALUE	Statistical Value	The statistical value of the goods is the price of the goods plus all costs associated with the movement to the point of leaving the UK (FOB delivery terms) for exports; or arriving into the UK (CIF delivery terms) for imports	Numeric	12
14	57	68	NET-MASS	NET-MASS	Netmass	Weight of the item in kilograms excluding packaging	Numeric	12
15	69	80	SUPP-UNIT	SUPPUNIT	Supplementary Unit	Second quantity (e.g. number) required for certain commodities, as specified in the Tariff / Combined Nomenclature.	Numeric	12
16	81	81	SUPPRESSION	SUPP-ARRIVALS DISPATCHES IMPORTS EXPORTS	Suppression indicator	Indicates whether the commodity code is subject to suppression and the level of suppression which applies: 0 - no suppression 1 - complete suppression 2 - suppression of countries and ports 3 - suppression of countries, ports & total trade	Character	1
17	82	84	FLOW		Flow	Identifies if the record relates to Imports or Exports	Character	3
18	85	85	REC-TYPE		Record Type	An indicator that allows aggregations to be calculated to include suppressed records. More information can be found in the "Bulk datasets information pack", section "Suppression and Confidentiality".	Character	1

Importer details

Importers YYMM

Reference	Field	Type	Field size
1	Year	Numeric	4
2	Month identifier	Numeric - in range 1 - 12
3	Number of lines for the company
4	Company name
5	Address 1	Character	30
6	Address 2	Character	30
7	Address 3	Character	30
8	Address 4	Character	30
9	Address 5	Character	30
10	Post code
11	Commodity codes imported during month (Column 1 - Column 50)

Exporter details

Exporters YYMM

Reference	Field	Type	Field size
1	Year	Numeric	4
2	Month identifier	Numeric - in range 1 - 12
3	Number of lines for the company
4	Company name
5	Address 1	Character	30
6	Address 2	Character	30
7	Address 3	Character	30
8	Address 4	Character	30
9	Address 5	Character	30
10	Post code
11	Commodity codes imported during month (Column 1 - Column 50)

BDS preference 2021

Preference data: BDSPref21MM

On 19 June 2023 the Developing Countries Trading Scheme (DCTS) replaced the UK's Generalised Scheme Preferences (GSP).

Reference	From	To	Field name	Data dictionary field name	Full name	Description	Type	Field size
1	1	2	COO-ALPHA	COO-ALPHA	Country of Origin	Alpha code for Country of Origin. The Country of Origin is the country where the goods were originally produced, which may be different from the Country of Dispatch/Consignment (Country of Origin will be different from Country of Dispatch/Consignment if goods have been sold to another country before being consigned to the UK).	Character	2
2	3	10	COMCODE	COMCODE	Comcode	8 digit commodity code found in the Combined Nomenclature	Character	8
3	11	11	STATREG	STATREG	Statisitcal Regime	The Statistical Regime variable is compiled using the Customs Procedure Code, and is coded as follows:        1 – Normal        2 – Inward Processing        3 – Outward Processing        9 – Unknown (no associated Customs Procedure Code)	Character	1
4	12	13	ELIGIBILITY	ELIGIBILITY	Eligibility	The Eligibility variable indicates the trade regime available, as shown in the UK Tariff, to import a product into the UK and is coded as follows:        E1 = ONLY MFN, where no DCTS rate or non-DCTS preference rate                 (with or without quota) exists        E2 = ONLY DCTS, where a DCTS rate (with or without quota) exists but a                  non-DCTS preference rate does not exist        E3 = ONLY Preferences, where a non-DCTS preference rate (with or                  without quota) exists but a DCTS rate does not exist        E5 = DCTS and Preferences, both DCTS and non-DCTS preference                 rates (with or without quota) exist        EZ = UNKNOWN	Character	2
5	14	16	USE	USE	Use	The Use variable indicates the trade regime used, as reported on the customs declaration, to import a product into the UK and is coded as follows:        U10 = MFN ZERO, trade and tariff data show the good was imported and                   was eligible to be imported under Most Favoured Nation terms                   (with or without quota or duty suspension) at a zero rate.        U11 = MFN NON-ZERO trade and tariff data shows the good was                   imported and was eligible to be imported under Most Favoured                   Nation terms (with or without quota) at a non-zero rate.        U20 = DCTS ZERO, trade and tariff data show the good was imported                   and was eligible to be imported under DCTS preferential terms                   (with or without quota) at a zero rate.        U21 = DCTS NON-ZERO, trade and tariff data show the good was                   imported and was eligible to be imported under DCTS preferential                   terms (with or without quota) at a non-zero rate.        U30 = PREFERENCE ZERO, trade and tariff data show the good was                   imported and was eligible to be imported under non-DCTS                   preferential terms (with or without quota) at a zero rate.        U31 = PREFERENCE NON-ZERO, trade and tariff data show the good                   was imported and was eligible to be imported under non-DCTS                   preferential terms (with or without quota or duty) at a non-zero rate.        UZZ = UNKNOWN	Character	3
6	17	22	PERREF	PERIOD-REFERENCE	Period Reference	Identifies the month of account of an item in format YYYYMM. For non-amendment records this will be the same as the file month; for amendment records and late supplementary declarations it will be the month to which the amendment or supplementary declaration relates.	Character	6
7	23	30	STAT-VALUE	STAT-VALUE	Statistical Value	The statistical value of the goods is the price of the goods plus all costs associated with the movement to the point of leaving the UK (FOB delivery terms) for exports; or arriving into the UK (CIF delivery terms) for imports	Numeric	8
8	31	38	NET-MASS	NET-MASS	Netmass	Weight of the item in kilograms excluding packaging	Numeric	8
9	39	46	SUPP-UNIT	SUPPUNIT	Supplementary Unit	Second quantity (e.g. number) required for certain commodities, as specified in the Tariff / Combined Nomenclature.	Numeric	8

BDS preference

Preference data: BDSPrefYYMM

On 19 June 2023 the Developing Countries Trading Scheme (DCTS) replaced the UK's Generalised Scheme Preferences (GSP).

Reference	From	To	Field name	Data dictionary field name	Full name	Description	Type	Field size
1	1	2	COO-ALPHA	COO-ALPHA	Country of Origin	Alpha code for Country of Origin. The Country of Origin is the country where the goods were originally produced, which may be different from the Country of Dispatch/Consignment (Country of Origin will be different from Country of Dispatch/Consignment if goods have been sold to another country before being consigned to the UK).	Character	2
2	3	4	COD-ALPHA	COD-ALPHA	Country of Dispatch	Alpha code for Country of Dispatch/Consignment	Character	2
3	5	12	COMCODE	COMCODE	Comcode	8 digit commodity code found in the Combined Nomenclature	Character	8
4	13	13	STATREG	STATREG	Statisitcal Regime	The Statistical Regime variable is compiled using the Customs Procedure Code, and is coded as follows:        1 – Normal        2 – Inward Processing        3 – Outward Processing        9 – Unknown (no associated Customs Procedure Code)	Character	1
5	14	15	ELIGIBILITY	ELIGIBILITY	Eligibility	The Eligibility variable indicates the trade regime available, as shown in the UK Tariff, to import a product into the UK and is coded as follows:        E1 = ONLY MFN, where no DCTS rate or non-DCTS preference rate (with                 or without quota) exists        E2 = ONLY DCTS, where a DCTS rate (with or without quota) exists but a                 non-DCTS preference rate does not exist        E3 = ONLY Preferences, where a non-DCTS preference rate (with or                 without quota) exists but a DCTS rate does not exist        E5 = DCTS and Preferences, both DCTS and non-DCTS preference                 rates (with or without quota) exist        EZ = UNKNOWN	Character	2
6	16	18	USE	USE	Use	The Use variable indicates the trade regime used, as reported on the customs declaration, to import a product into the UK and is coded as follows:        U10 = MFN ZERO, trade and tariff data show the good was imported and                   was eligible to be imported under Most Favoured Nation terms                   (with or without quota or duty suspension) at a zero rate.        U11 = MFN NON-ZERO trade and tariff data shows the good was                   imported and was eligible to be imported under Most Favoured                   Nation terms (with or without quota) at a non-zero rate.        U20 = DCTS ZERO, trade and tariff data show the good was imported                   and was eligible to be imported under DCTS preferential terms                   (with or without quota) at a zero rate.        U21 = DCTS NON-ZERO, trade and tariff data show the good was                   imported and was eligible to be imported under DCTS preferential                   terms (with or without quota) at a non-zero rate.        U30 = PREFERENCE ZERO, trade and tariff data show the good was                   imported and was eligible to be imported under non-DCTS                   preferential terms (with or without quota) at a zero rate.        U31 = PREFERENCE NON-ZERO, trade and tariff data show the good                   was imported and was eligible to be imported under non-DCTS                   preferential terms (with or without quota or duty) at a non-zero rate.        UZZ = UNKNOWN	Character	3
7	19	24	PERREF	PERIOD-REFERENCE	Period Reference	Identifies the month of account of an item in format YYYYMM. For non-amendment records this will be the same as the file month; for amendment records and late supplementary declarations it will be the month to which the amendment or supplementary declaration relates.	Character	6
8	25	32	STAT-VALUE	STAT-VALUE	Statistical Value	The statistical value of the goods is the price of the goods plus all costs associated with the movement to the point of leaving the UK (FOB delivery terms) for exports; or arriving into the UK (CIF delivery terms) for imports	Numeric	8
9	33	40	NET-MASS	NET-MASS	Netmass	Weight of the item in kilograms excluding packaging	Numeric	8
10	41	48	SUPP-UNIT	SUPPUNIT	Supplementary Unit	Second quantity (e.g. number) required for certain commodities, as specified in the Tariff / Combined Nomenclature.	Numeric	8