1. 1993- HT was established with an investment capital RMB400 thousand, 50 employees and location of Huayuan Street of Tangshan. Later it was changed its location to Jixiang Road.
2. 2003- HT found location in No. 196 Nanxinxi Street of Tangshan and No. of our employees was more than 600. HT was with a covering area 70 thousand square meters, construction area 36 thousand square meters, owning more than 200 sets of production equipment and more than 100 sets of testing equipment. Its annual production capacity was RMB1 billion which was leading in the domestically industry.
3. 2008- HT located itself in Fengnan Industrial Development. The new factory covers an area of more than 220 square meters, owning more than 420 sets of production equipment and more than 250 sets of testing equipment. Its annual production capability was RMB 3 billion.
4. 2015- the enterprise is expanding and invested to establish factory in other countries.