Straightforwardly, we have mainly purchased S50C FB/SB both Oji& Nihon and perhaps bought a monor shinkansai steel through you(since miyata until Now,Tokka Shoji)
As you description, all charges or expenses in Yokahama are too expensive than OSAKA which cause Oji price is higher than Nihon&Shinkansai entirely. Consequently, we have more question that why don't you maker proper offer for Oji steel in order to minimize a result of lost profits(still offer the same price as Nihon), or Do you need to keep regular customer, or else reason?