2021, feem ntau tsom rau kev tsim lub tuam txhab cov khoom lag luam zoo xws li tungsten, molybdenum, zirconium, stellite alloy, iridium khoom, thiab sputtering lub hom phiaj, NdFeB muaj zog hlau nplaum.
2020, raws li lub tuam txhab kev tsim kho xav tau, txhawb thiab tsim lub tuam txhab hom Yitech.
2019, lub chaw muag khoom ntawm NdFeB muaj zog hlau nplaum tau teeb tsa.
Xyoo 2018, raws li cov kev xav tau ntawm peb cov neeg siv khoom, peb tau nthuav dav lub tuam txhab cov khoom siv hlau, kev lag luam thiab kev muag khoom, thiab tsim lub chaw muag khoom los koom nrog tungsten, molybdenum, tantalum, niobium, zirconium, titanium, nickel, tooj liab, iridium, platinum, beryllium, hafnium ntau lawm thiab muag.
2016, ntau tus kws tshaj lij kev paub dhau los ntawm cov tuam txhab lag luam hauv xeev tau koom nrog lub tuam txhab rau Kev Txhim Kho & Tswj cov khoom zoo.
Xyoo 2014, lub tuam txhab tau nqis peev hauv kev tsim cov khoom lag luam tungsten thiab molybdenum sib sib zog nqus.
2011, YITECHTRADING tau teeb tsa hauv Yiwu nroog, Zhejiang xeev.