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In1992, Y&L was founded, and started production in April.

In1996, Y&L got the certificate GB/T19002-1994 idt ISO9002:1994 of Quality Management System.

In 2002, Y&L moved to the new site, and got the certificate GB/T19001-2000 idt ISO9001:2000 of Quality Management System.

In2004, Y&L got the certificate GB/T24001-1996 idt ISO14001:1996 of the Environment Management System, and launched SAP system.

In 2006, Y&L got the certificate GB/T24001-2004 idt ISO14001:2004, and started producing electrodes of ceramic metal halide lamps.

In 2007, Y&L started producing electrode assemblies of xenon automotive lamps.
In 2009, PHILIPS granted Y&L as Sustainability Award of Royal Philips Global Supplier Awards.

In 2010, Y&L got the certificates GB/T19001-2008 idt ISO9001:2008 of Quality Management System and GB/T28001-2001 OHSAS18001:2007 of the Occupational Health and Safety Management System, and started producing electrodes of projection lamps.

In 2011, Y&L started producing amalgam of fluorescent lamps.

In 2012, Y&L started producing blind-hole Niobium tubes.

In 2013, Y&L brought products into non-lighting areas: medical treatment, automobile, environmental protection.