SPECTRAL SIGNATURE

Electrical and Scientific Apparatus

Owner

AMCO INTERNATIONAL, INC.

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PARTICLE PATTERN RECOGNITION

Electrical and Scientific Apparatus

Owner

AMCO INTERNATIONAL, INC.

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AMACLEAR

Chemicals

Owner

AMCO INTERNATIONAL INC.

May 28, 2002
AMALENE

Chemicals

Owner

AMCO INTERNATIONAL INC.

Jul 9, 2002
AMALLON

Chemicals

Owner

AMCO PLASTIC MATERIALS, INC.

AMCO INTERNATIONAL, INC.

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AMALLOY

Chemicals

Owner

AMCO PLASTIC MATERIALS, INC.

AMCO INTERNATIONAL, INC.

May 14, 2002