Ropak Corp.’s net income for the first...

Ropak Corp.’s net income for the first quarter dropped 48% to $231,000 from $440,000 a year ago. Revenue rose 21% to $20.9 million from $17.4 million. William H. Roper, chairman and chief executive, attributed the lower earnings to a new round of price competition in the plastic container industry. Ropak, based in Fullerton, makes plastic packaging and handling products for foods, coatings and a variety of agricultural and industrial materials.