Kiwa Bio-Tech Products Group Ltd. Announces Completion of Merger with Publicly Traded Shell

LOS ANGELES – Tintic Gold Mining Company (OTCBB:TTGM) today announced that effective as of the opening of the markets today, the new trading symbol for the Company’s common stock on the Over-The-Counter Bulletin Board has changed from “TTGM” to “KWBT.” The new symbol reflects the previously announced name change to Kiwa Bio-Tech Products Group Corporation (“KIWA”). In addition, the previously announced 4-for-1 stock split of the Company’s common is also effective as of the opening of the markets today.

“Completing the merger with Tintic Gold Mining Company was an important milestone in KIWA’s corporate development plan,” said Li Wei, Chairman and Chief Executive Officer of KIWA. “KIWA aims to be a pioneer in the fast growing Chinese ag-biotechnology market. We intend to leverage our capabilities in developing, manufacturing and selling ag-biotechnological products, our low manufacturing costs and the vast market opportunities in China in order to maximize value for our shareholders.”

KIWA BIO-TECH PRODUCTS GROUP CORPORATION

KIWA is a development stage company, which develops, manufactures and distributes innovative, cost-effective and environmentally safe bio-technology products to agriculture, natural resources and environmental conservation markets. KIWA has an operating subsidiary in China. KIWA’s first product, a Photosynthesis Biological Catalyst, was introduced in the China agricultural market in November 2003. KIWA continues to improve existing products and develop new products. The company seeks to become a market leader in bio-fertilizer and natural resources protection products in the world.

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