| August 1969 |
Founded Keystone Industrial Co., Ltd. By Mr. Ching-Sum Yu at 19 Ta Yip Street, Kowloon. |
| April 1974 |
Moved to 59 Hung To Road, Total Factory Space 27,000 sq.ft. |
| May 1978 |
Bought first piece of land, area 32,000 sq.ft. for Fanling future expansion (now note as Fanling Cable Factory) |
| March 1979 |
Obtained license from UL and CSA tp produce appliance wire, radio-circuit wire, flexible card and power supply card set. |
| April 1980 |
Bought second piece of land in Fanling established Fanling factor to produce PVC compound and telecommunication cable. Total floor area 16,000 sq.ft. |
| November 1981 |
Obtained Hong Kong Q-Mark License for BS6004 power cable. |
| April 1984 |
Established Keystone Electric Wire & Cable Co., Ltd. |
| October 1990 |
Sign the letter of intent and agreement to purchase the adjacent land of Fanling Cable Factory Site to make the total land area to be approximately 120,000 sq.ft. |
| January
1991 |
Sign Joint Venture and Technical Assistance Agreement with Phelps Dodge Corporation, USA. |
| June 1991 |
Rod Breakdown Machine in operation in Fanling Cable Factory Site. |
| December 1993 |
Awarded ISO 9002 Quality Management System by British approvals Service for Cables (BASEC) |
| February 1994 |
Awarded Product Certificates in compliance to British Standards under Product Certification Scheme of BASEC |
| March 1994 |
Official BASEC Certificates Presentation Ceremony |
| November 1995 |
Dongguan Keystone Factory Building complete construction |
| March 1996 |
Dongguan Keystone Factory commence production. |
| December 1996 |
Dongguan Keystone was awarded ISO 9002 certification from BASEC, UK |
| March 1997 |
Dongguan Keystone was awarded Productcertification from BASEC, UK |
| Mid
2004 |
Dongguan
Keystone was expand another 100,000squre feet for MV cable product |
| Late
2005 |
The
medium voltage cables were productedand performance validated by KEMA |
| December
2007 |
Dongguan
Keystone was awarded ISO 14001 certification from China
Quality Certification Center. |
| August
2009 |
30KV
Rubber Cable for winfarm was successfully manufactured |
| 八月
1969 |
于靜深先生成立「啟東實業有限公司」位於大業街19號 |
| 四月
1974 |
搬往鴻圖道58號, 擁有2萬7仟平方呎 |
| 五月
1978 |
買入第一塊地, 佔地3萬2仟平方呎位於粉嶺, 以便將來發展 |
| 三月
1979 |
榮獲美國UL及加拿大CSA電線品質檢定證書, 包括UL1015, UL1007,
多芯軟電線, 及電線插頭 |
| 四月
1980 |
買入粉嶺另一塊地, 以便發展, 生產PVC膠粒及生產室內通訊電線佔地壹萬六千呎 |
| 十一月
1981 |
榮獲香港品質標誌(HKQ-MARK)證書定本廠所生產之BS6004電纜 |
| 四月
1984 |
成立啟東電線電纜有限公司 |
| 十月
1990 |
購入粉嶺電纜廠隔壁的地皮, 佔面積約12萬平方呎 |
| 一月
1991 |
正式與美國, 菲爾普斯.導奇簽合作與技術轉讓協議書 |
| 六月
1991 |
第一台8mm拉銅機條啟用 |
| 十二月
1993 |
榮獲英國特許電業測試局(BASEC)批核ISO9002國際品質系統證書 |
| 二月
1994 |
榮獲BASEC批核電纜品質標誌 |
| 三月
1994 |
BASEC在香港舉行啟東頒證典禮 |
| 十一月
1995 |
東莞廠房正式建成 |
| 三月
1996 |
東莞廠投產 |
| 十二月
1996 |
東莞榮獲BASEC批核ISO9002國際品質系統證書 |
| 三月
1997 |
東莞榮獲BASEC批核電線品質標誌 |