The following code can be used to retrieve item details from an account, filtered by a specific subsidiary.
SELECT
item.displayname,
item.id,
aggregateItemLocation.location,
location.name AS location_name,
item.class,
item.subsidiary AS class_name,
aggregateItemLocation.currentstandardcost,
item.custitem_au_item_weight,
item.custitem_au_item_stock_pack_size,
aggregateItemLocation.quantityonhand,
aggregateItemLocation.preferredstocklevel,
aggregateItemLocation.reorderpoint,
CASE
WHEN aggregateItemLocation.location = 18 THEN item.custitem_au_melb_bin_1
WHEN aggregateItemLocation.location = 20 THEN item.custitem_au_syd_bin_1
WHEN aggregateItemLocation.location = 31 THEN item.custitem_au_perth_bin_1
WHEN aggregateItemLocation.location = 50 THEN item.custitem_au_brs_bin_1
ELSE ''
END AS bin_number
FROM
item
LEFT JOIN
classification ON classification.id = item.class
LEFT JOIN
aggregateItemLocation ON aggregateItemLocation.item = item.id
LEFT JOIN
location ON location.id = aggregateItemLocation.location
LEFT JOIN (
SELECT
itemSubsidiaryMap.item AS item,
Subsidiary.ID AS id_crit
FROM
itemSubsidiaryMap
INNER JOIN Subsidiary ON itemSubsidiaryMap.subsidiary = Subsidiary.ID
) itemSubsidiaryMap_SUB
ON item.ID = itemSubsidiaryMap_SUB.item
WHERE
item.itemtype IN ('Assembly', 'InvtPart', 'Group', 'NonInvtPart', 'Kit', 'Service')
AND itemSubsidiaryMap_SUB.id_crit IN(7)