CST Clean Surface Technology Co.

CLEAN SURFACE TECHNOLOGY CO. founded and capitalized at 24,000,000 yen.

First facility at Kurami in Samukawa machi.

Relocation of the head office plant to the place above, start manufacturing and selling maskblanks.

Start manufacturing and selling plates for CF video camera tube.

Second facility at Kurami to establish production systems 20,000 pcs/month.

Acquisition of land for industrial use(178,000sq ft) in Esashi(Iwate prefecture) core industrial parks.

Development of dual-purpose for dry and wet maskblanks T-67, start manufacturing and selling.

First Esashi-plant completion in Esashi.

Start manufacturing and selling at first Esashi-plant

Acquisition of land for industrial use in Ohmagari, Samukawa-machi, Kouzagun Kanagawa prefecture.

Start manufacturing and selling handling tool.

Head-plant completion in Samukawa machi.

Development of suputtering device for small mask, changed coating method from evaporation to sputtering.

Start manufacturing and selling large maskblanks.

Start manufacturing and selling low reflective BM blanks.

Joint development agreement with Rockwell Collins on ultra-low reflective BM blanks.

Completed development of ultra-low reflective BM blanks and start manufacturing and selling.

Second Esashi-plant completion to initiate full-scale operation above.

Start manufacturing and selling large quartz maskblanks "620x720" for LCD.

Third Esashi-plant completion and start shipping large quartz maskblanks "700x800" for LCD.

Start manufacturing and selling handling tool for large plate.

Head mask-plant completion and initiate operation for large maskblanks for PDP.

Half-tone film entry into production

Start full-scale operation to ship for PDP

Esashi mask-plant completion and prepared for 1350x2100 size

Earned ISO 9001 certification

Recognized as a corporation in good standing.

Head east-plant completion and start manufacturing and selling G8 for LCD

Start full-scale operation for HT film

Esashi main plant completion and start manufacturing and selling G10 for LCD

Start manufacturing and selling 2100x2500 maskblanks for PDP

Completion of development ZF11 film for high definition masks, and starts manufscturing and selling