The Marine Engineering Department at Aqua Product Corporation was originally a division of Tomen Construction Corp. and was later operated by Otto Product Corporation.

One of the products we provide is “Gcon”, a high density concrete capable of being produced in ready mixers, that is known as for its premium grade, excellent durability, and superior installability. It has continually demonstrated a record of high performance throughout Japan in the construction of high wave fishing ports, harbor shore protection, seawalls, and other special structures requiring high density construction.

We also market various precast, high iron-content concrete products that function as concrete shields. Among these is a round steel-cast form that we lease to construction companies for use in creating the concrete shape needed to build artificial fish reefs that protect and foster the growth of marine resources.