the FARC released four Chinese oil workers. The hostages were working for the Emerald Energy oil company, a British-based subsidiary of China's Sinochem Group, when they were kidnapped on 8 June 2011. Their Colombian driver was also kidnapped, but released several hours later. Authorities identified the freed men as Tang Guofu, Zhao Hongwei, Jian Mingfu, and Jiang Shan. Santos announced on 27 August 2012 that the Colombian government has engaged in talks with FARC in order to seek an end to the conflict: Exploratory conversations have been held with the FARC to find an end to the conflict. I want to make very clear to Colombians that the approaches that have been carried out and the ones that will happen in the future will be carried out within the framework based on these principles: We are going to learn from the mistakes made in the past so that they are not repeated. Second, any process must lead to the end of the conflict, not making it longer. Third, operations and military presence will be maintained across the entire national territory. He also said that he would learn from the mistakes of previous leaders, who failed to secure a lasting ceasefire with FARC, though the military would still continue operations throughout Colombia while talks continued. An unnamed Colombian intelligence source said Santos has assured FARC that no one would be extradited to stand trial in another country. Al Jazeera reported that the initiative began after Santos met with Venezuelan President Hugo Chávez and asked him to mediate. Former President Uribe has criticized Santos for seeking peace "at any cost" and rejected the idea of holding talks. Telesur reported that FARC and the Colombian government had signed a preliminary agreement in Havana the same day. The first round of the talks will take place in Oslo on 5 October and then return to Havana for approximately six months of talks before culminating in Colombia. However, Santos later ruled out a ceasefire pending the talks in Oslo and reiterated that offensive operations against FARC would continue. ELN leader Nicolás Rodríguez Bautista, otherwise known as Gabino, added that his group was interested in joining the talks too: "Well we are open, it's exactly our proposal, to seek room for open dialogue without conditions and start to discuss the nation's biggest problems. But the government has said no! Santos says he has the keys to