Mitsui Chemicals Inc. (TYO:4183) has announced that it will set up new production facilities for Milastomer, a thermoplastic olefin (TPO) elastomer, at its U.S. production base Advanced Composites Inc. in Ohio. The move will take an investment of approximately 1.5 billion yen ($14.24 million), and will establish facilities with an annual production capacity of 6,000 tons. Construction is slated to…