On May 6, 2015, Mr. He Yansheng from Reli Heritage Preservation and Mr. James, CEO of PTLP America attended the seminar of document deacidification held by National Library of China .

Mr. He Yansheng from Reli Heritage Preservation and Mr. James, CEO of PTLP America visited ancient book gallery in National Library of China .

Mr. Zheng Jjingsheng, former general manager of Xinhua News Agency, communicated with Mr. James, CEO of PTLP .

Mr. Zheng Jingsheng and Mr. He Yansheng had a conversation with American guests .

Mr. Chen Li, Deputy Director of the National Library of China, had a technical exchange with Mr. Raj .

Mr. James from PTLP America had a taste of Beijing roasted duck .