A Beijing court found that the fire at China Central Television's new headquarters two years ago had something in common with Monday's catastrophic fire in Shanghai - substandard insulating materials. Three employees of a Guangdong contractor have been sentenced to two to four years in jail for their roles in the CCTV fire in February 2009. The contractor for the CCTV building was found to have used substandard heat-proofing materials, according to the verdict delivered by the Beijing No 2 Intermediate People's Court on Thursday. The court said the company, Zhongshan Shengxing, had its supplies fail a quality test conducted by Beijing authorities in May 2007. But the company did not report the test results to the building regulator, nor did it have the sheeting being installed tested for fire-resistance. The company was fined 1.1 million yuan (HK$1.28 million) and its deputy general manager, Tang Zhuchuang, site manager Gu Xianshu and quality supervisor Li Shuzhi were found guilty of selling shoddy materials. The same court jailed 20 others implicated in the inferno in May, including Xu Wei, a CCTV official in charge of the new headquarters, who received the harshest sentence, seven years in prison. Li's lawyer, Yin Fuqiang, said yesterday that his client should not have been held to account for such grave violations because he was only a junior employee. 'My client had little say in quality matters, nor could he benefit from such violations if they'd gone undetected because he was a migrant worker earning 2,000 yuan a month,' he said.