ㆍ1977. /6

ㆍ1977. /8
ㆍ1978. /3
ㆍ1979. /4
ㆍ1979. 12		 Inaugurated and commenced the manufacture of diamond tools at
291-187 sindorim-dong, Kuro-gu, seoul, Korea.
Commenced the manufacture of DTH hammer and BUtton Bits.
Commenced the manufacture of diamond saw products.
Designated as a machine tools manufacturing factory by the korean government .
Export of diamond toos to Saudi Arabis.

  ㆍ1982. /2
ㆍ1983. /3
ㆍ1985. /3
ㆍ1985. 10
ㆍ1986. 11
ㆍ1987. .7
ㆍ1988. 11		 Authorized to use KS (Korean Standards) marks on our products.
Selected as a new machinery development company by the korean government.
Selected as a promising Medium-sized Company by the korean government.
Commenced the manufacture of broaching machines.
Awarded Prime Minister's Prize for the localization of machine tools.
Set up the Research & Development Center.
Awarded the Order of Industrial Service Merit for the machinery localization.

  ㆍ1990. /3
ㆍ1990. /8
ㆍ1990. /9
ㆍ1991. /3
ㆍ1993. /3

ㆍ1994. /5
ㆍ1996. /7
ㆍ1996. .8
ㆍ1998. .3

 Started the production of KODEX BIT for overburden drilling.
Commenced the manufacture of gun drilling machine & roller burnishing machine.
Built up Incheon Factory(1) (site area : 10,000㎡)
Started the exportation of DTH hammer and bits.
Additional facilities for the production of super large hammers and bits
were expanded.
Started the production of K-520 hammer and super large bit.(24"-33")
Started the production Factory(2) (site area : 5,100㎡)
Commenced the manfacture of reverse circulation hammer and button bits.
Commenced the manufacture of KSL-35 (32"-45" hole dia) and
KSL-45 (40"-57" hole dia) hammers.

  ㆍ2000. 12
ㆍ2002. 11
ㆍ2004. /9
 ISO 9001 approval
Export of 32" hammers & 920mm bits to Japan
Export of honing machines to China & india