On January 11, the author learned that Lejian Technology Co. , Ltd. , a supplier of LED thermal management accessories, has recently submitted an application for listing on the gem to the Hong Kong stock exchange. The sponsor is CCB International. Lejian technology's main business is to produce and sell LED thermal management substrates and LED modules used in general lighting and special lighting applications. Which LED thermal management substrate is the the company of core business and main income source 2014 and 2015 its income accounted for than respectively for 59. 6 and 66. 9. Non-LED substrates and LED modules contribute the rest of the revenue to the company's non-core business. Lejian Technology sells products within its scope. Among them, the Chinese mainland and Hong Kong markets contributed more than half of the revenue in 2015, accounting for 26. 2 and 28. 7. In addition, the company's revenue from North America, South America and Europe accounted for 20. 2, 10. 6 and 9. 9. According to the report issued by zhuoshi, a consulting agency, the LED lamp market has grown rapidly in recent years, with its market size increasing from US $10. 3 billion in 2011 to US $29. 1 billion in 2015, with a compound annual growth rate of 29. 8. Zhuoshi expects that the growth rate of LED lamp market will slow down from 2016 to 2020, but will remain at 24. 5%. Compound annual growth rate of 5. Despite the rapid growth of the industry, the performance of Lejian technology is not smooth. 2014 and 2015 the the company income respectively for 5. HK $0. 7 billion (The same below)And 4. 2. 6 billion, down 19 year-on-year, adjusted net profits excluding non-recurring gains and losses such as listing expenses were 4843 respectively. 50 thousand and 2583. 30 thousand, down 46 per year. 7. However, in the seven months ended July 31, 2016, the company's performance improved, with a revenue of 2. 5%. 7. 2 billion, an increase of 16. 2. Adjusted net profit is 1097. 60 thousand, compared with a loss of 79 in the same period last year. 20 thousand. Lejian technology's performance has stabilized and rebounded, mainly due to the company's LED thermal management plan that has adjusted its business focus to a higher gross profit margin and a larger market space. The company's LED thermal management substrates and LED modules have gradually increased their revenue share, and their overall gross profit margin has also increased.