THEPAPORN CO., LTD

Member of Weng Group

LOCATION.

Silica sand project in Chumphon province, southern region of Thailand.

Head Office in Bangkok.

THEPAPORN CO., LTD. Explored silica sand in Ban Khoi area since 2010. Plant operating started in July 2014.

RESERVE. Mining license.

1 mining license cover 398,180 sq.m. or 248.9 rai. Reserves.

Measured 1.50 Mil.t. Indicated 3.22 Mil.t.

EXPLORATION DRILLING SEQUENCES.

Objective - to determine; Over burden thickness. Silica sand thickness. Silica sand quality.

Drill hole pattern; 1. Phase I - 50 ×50 m., depth 5 m., total of 93 holes. 2. Phase II – 62.5 ×62.5 m., depth 18 m., total of 58 holes.

QUALITY ANALYSIS OF DRILL HOLE SAMPLES.

%Yield. L.O.I. Gradation analysis. Chemical composition.

SILICA SAND PRODUCTION PROCESS.

MiningWashing Process

StorageDistribution

SILICA SAND PRODUCTION PROCESS.

SILICA SAND PRODUCTION PROCESS.

Silica sand pumped to temporary stockyard by suction dredger.

SILICA SAND PRODUCTION PROCESS.

Raw material fed to washing plant by belt conveyor

Trommel separates the size of 20# and 30#

SILICA SAND PRODUCTION PROCESS.Hydrocyclone separates water from silica sand (dewatering).

Classifier tank separates organic matter and fine sand from silica sand.

SILICA SAND PRODUCTION PROCESS.

Humphrey spiral concentrator separates heavy minerals from silica sand.

Silica sand stock yard.

SILICA SAND PRODUCTION PROCESS.

Warehouse storage for finished product.

Finished product fed to barge.

QUALITY CONTROL.

Quality control performs throughout the process from mining to finished product prior before distribution.

SILICA SAND PRODUCT.

Silica sand for glass industry. Low iron content silica sand for premium glass. High iron content silica sand for metal casting

industry. Fine silica sand.

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