I can't, (ahem), disclose the manufacturer, but it's not a very wide field. It was offered to us as a budget paper, glossy only, usual weight. Although it's VC, the contrast range is engineered to be limited to mid-field, (grades 2-3) so it's not hitting the marketing of the top range papers. It seemed particularly suited to the student market, and for anybody producing work prints, so we just had it cut in 2 sizes, 8x10" & 9.5x12", both 50 sheets.
This was a one-off experiment, we've got enough of these 2 sizes to maybe last till the year end. Getting a further supply will mean negotiating another deal, so we'll see how the first one goes.
It only arrived today, should be able to post some prints showing the contrast range relative to MG4 tomorrow.