In the local Turkish steel plate spot market, traders' prices for stock material St37 grade15-40 mm x 1,500 mm steel plate in Turkey's Gebze and Eregli regions for March deliveries have increased by $10/mt over the past two weeks and are currently at $680-690/mt ex-warehouse and $670-680/mt ex-warehouse, respectively, both for advance payments and excluding 18 percent VAT.