Hyosung's October 2015 report describes a visit to the Nantong transformer plant by its manufacturing partners. It specifically identifies extra-high-voltage transformer production and a programme concerned with manufacturing processes and site management. That gives a useful connection between the group brand and this production location. It does not transfer the capabilities of every Hyosung factory to Nantong.
For an enquiry, name Nantong Hyosung Transformer and the proposed manufacturing site in the scope of supply. A group-branded presentation can introduce the supplier, but the contract, drawings, inspection plan and factory acceptance documents should identify the actual supplying entity. This is particularly useful when a purchasing team is comparing offers from multiple production locations within an international manufacturer.