The company said the event conformed to the national strategy saying "develop the country through science and education".
The company said it would replace the defective door locks free of charge.
The company said it plans to enter more than 90 percent of European markets by the end of this year. It is now the fourth-largest smartphone vendor in India, Indonesia and the Philippines, Realme said.
The company is set to bring the 127th Canton Fair, a major trade event in China, online for the first time in June by becoming its sole technical service provider.
The company's related bonds were also heavily hit. Its two bonds issued at the Shanghai Stock Exchange both dropped more than 8 percent on Thursday. Its US dollar bond due by 2023 shed a 27 percent on Wednesday, hitting a record high.
The company strives to improve production efficiency, lower production cost, enhance manufacturing environment, as well as increase the competitiveness and added value of TCM, company executives said.
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The company was fined 8.3 million yuan (.3 million) and its senior executives were banned for life from entering the securities business. Xintai Electric's chairman Wen Deyi later admitted the violation but said it did not warrant delisting.
The company's profits attributable to shareholders stood at 71.5 billion yuan (about .9 billion) in 2017, according to a report on its website.
The company will carry out a back-door listing via SJEC Corporation, an elevators and escalators maker that has been suspended from trading since June this year.
The company said the intelligent system can screen people even when they are wearing a mask. At present, it has been put into use in the headquarters of China Taiping Life Insurance, China CITIC Bank, the Shenzhen Civil Center, Baodi Square and other places.