Mark Latour, Environmental Investment Strategies, Amherst, Mass., likes Tetra Technologies (TTRA, OTC, around $10).
"With strong positions in niche markets, the company faces a wide range of profitable opportunities over the next few years. Its largest business is the recycling of specialty chemicals. Based in Texas, much of its work is with oil and gas companies. . . . For the first half of 1990, sales rose 22 percent to $25 million. Earnings per share should reach 45 to 50 cents a share this year."
David Kleinman, Collard Report, Chicago, recommends Thermo Process Systems (TPI, AMEX, around $8).
"Thermo is a leading maker of advanced thermal processing systems that provide a variety of tasks. Of primary focus is their ability to decontaminate soil that has been polluted with hazardous waste or toxic chemicals. The company recently acquired Remediation Technologies, giving them access to mobile systems designed for cleaning soil that has been contaminated by leakage of underground petroleum storage tanks."