What is Mitsui Chemicals' latest plan for expanding its ophthalmic lens material production in Japan, and when is it scheduled to begin commercial operations?

Mitsui Chemicals Inc. plans to expand its production capacity for high refractive-index ophthalmic lens material at its Omuta, Japan site by constructing a new production plant, with commercial operations scheduled to start in the first half of 2029.

Why is Mitsui Chemicals expanding its high refractive-index ophthalmic lens material capacity, and where is demand growing most strongly?

The expansion responds to continued market growth for high refractive-index ophthalmic lenses—high-performance products enabling thinner, lighter lens designs—with demand rising particularly in Asia and North America.

Mitsui Chemicals to Further Hike Ophthalmic Lens Capacity in Japan

Jun 4, 2026

Mitsui Chemicals plans to expand production capacity for high refractive-index ophthalmic lens materials at its Omuta plant, with commercial operations starting in the first half of 2029. The move addresses growing demand in Asia and North America for thinner, lighter lens designs.

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