"He also expressed concerns regarding the Chinese government's interference in Tibetan Buddhists' freedom to organise and practice their religion," she said.
Asked about the US envoy's call for dialogue with the Dalai Lama, Chinese Foreign Ministry spokesman Lu Kang told media here that Chinese officials had briefed the ambassador about China's religious and ethnic policies and also about socio-economic development in Tibet.
It has also been made clear to him that "the Chinese government's policy on dialogue and contact with the Dalai Lama and foreigners access to Tibet. Finally, it was also stressed that China firmly opposes any foreign interference in Tibet affairs in China's domestic affairs," he said.
"The ambassador thanked China for the hospitality given to him and spoke positively about socio-economic development in Tibet and said that the visit helped him have a better understanding of the situation in Tibet," Lu said.
Beijing's permission to Branstad came after the US early this year passed the Reciprocal Access to Tibet Act of 2018, warning equal and reciprocal measures if Beijing denied access to American citizens, government officials and journalists to Tibet.
The new US law would impose a visa ban on Chinese officials who deny American citizens, government officials and journalists access to Tibet.
Before the US's envoy's visit, Lu hoped that he would make an objective and unbiased judgement on the situation in Tibet.
China, which accuses the Dalai Lama as a "splittist" working for Tibetan independence, has held talks with the Dalai Lama's representatives to find an amicable solution to the Tibetan issue in the past. The last such dialogue took place in 2010.
The 14th Dalai Lama had fled to India in early 1959 to escape from the Chinese occupation and lives in exile in the hill town of Dharamshala.
Beijing criticises the Dalai Lama's demand for autonomy, saying that it is a ploy for separation of Tibet from China. Chinese officials have said in the past that the Dalai Lama's demand to unify all the Tibetan prefectures with the present Tibetan Autonomous Region and provide greater autonomy is unacceptable to Beijing.
Over 120 Tibetans committed self-immolations in recent years calling for the return of the Dalai Lama from his exile in India.