SOURCE: Unico, Inc.

July 10, 2008 09:20 ET

Unico, Inc. Announces Update on Improvements and Repairs Made to Floatation Circuit as a Result of Ongoing Testing at the Deer Trail Mill and Processing Facility

SAN DIEGO, CA--(Marketwire - July 10, 2008) - Unico, Incorporated (OTCBB: UNCO), a natural resource company in the precious metals mining sector, today announced additional improvements and repairs that have been made as a result of testing of the completed floatation circuit at the mill and processing facility at the Deer Trail Mine in Marysvale, Utah.

During an extended period of operation, it was noted that the balance of feed being pumped to the Krebs Cyclone was unsustainable. After contacting Krebs, the manufacturer of the cyclone, their engineers noted that the ball mill would need to operate with a three hundred percent re-circulating load to help maintain the longevity of the mill liners and control the fluctuations in the milling circuit.

Deer Trail mill personal attempted to maintain the required underflow returning to the ball mill for regrind, while maintaining the required overflow reporting to floatation. The unbalances that were observed created surges into the primary floatation feed, causing uncontrolled frothing and over and under dosages of floatation reagents. After several attempts to correctly operate the cyclone, it was determined that the mill would need to be temporarily shut down as further laboratory testing could be conducted.

Several tests were completed in the metallurgical laboratory at the site. It was determined that a distribution box needed to be constructed and placed into the cyclone circuit. The distribution box allows the mill operator to send a portion of the cyclone overflow back to the ball mill, thus helping to maintain the required amount of ore being re-circulated back for regrind and providing the required re-circulating load. After the installation of the newly constructed distribution box, the classified material being sent from the cyclone overflow to the floatation conditioning tanks was stabilized.

Also during the testing process, it was discovered that the sulfide concentrate being produced at the mill would need an additional step to further maximize the quality and increase the economics of shipping. It was also noted that the concentrate contained a significant amount of freely floating talc or clay-like mineral.

A third set of Gallagher floatation cells have been reconditioned and installed into the main mill building, including two pumps, all necessary electrical circuits and the required piping. The new bank of floatation cells is currently being utilized in the final step to further upgrade the concentrates produced.

After an extended period of operation, oil was observed leaking from under the WesTech thickener gear mechanism. The rakes and main gear were dismantled and removed, cleaned and checked for noticeable damage. A small crack was found under the main gear box possibly due to damage during shipping. The repairs to the thickener have now been successfully completed.

A composite of the concentrate currently being made in the mill will be taken and sent for outside independent assay verification prior to their anticipated sale.

Mark A. Lopez, chief executive officer of Unico, Inc., stated, "These repairs and improvements that were undertaken as a result of the ongoing testing of the completed floatation circuit were necessary in order to facilitate a more effective and efficient operation at the facility. We look forward to the next steps at the facility, which are expected to include the production of concentrate."

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About Unico, Inc.

Unico, Inc. (OTCBB: UNCO) is a publicly traded natural resource company in the precious metals mining sector that is focused on the exploration, development and production of gold, silver, lead, zinc, and copper concentrates at its two mine properties: the Deer Trail Mine and the Silver Bell Mine. The company has also announced agreements to acquire over 70 additional mining claims including the Clyde and Crown Point mining claims. In August 2007, Unico announced that its wholly owned Deer Trail Mining Company subsidiary had completed the purchase of the Deer Trail Mine from Crown Mines, LLC. For more information, please visit

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