250 IHA steel carriers were built to transport high-grade steel on a variety of flows. These include domestic steel from South Wales to destinations in the midlands, north and south-east of England and via the Channel tunnel to customers in France, Belgium and Holland. The IHAs are also used to feed imported steel from ports on the east coast and Thames estuary to steel terminals inland. The first batch of 48 wagons were built by Fauvet Girel in 1991 with further batches built in 1993 and 1998. Now owned by wagon leasing company Ermewa, the wagons have red bogies, underframes and ends and grey canvas covers. Some have yellow dots painted in the covers signifying they are reserved for domestic traffic only. As the canvas covers come due for renewal, wagon owners Ermewa began adding its branding more prominently.