![Uncredited In this photo provided by the Serbian Presidential Press Service, Chinese President Xi Jinping, left, and his wife Peng Liyuan wave during a welcome ceremony upon arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)](https://mapi.associatedpress.com/v2/items/fe1efbc2257a42679eae5f1ebbfe12f5/preview/preview.jpg?s=680x)
In this photo provided by the Serbian Presidential Press Service, Chinese President Xi Jinping, left, and his wife Peng Liyuan wave during a welcome ceremony upon arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)
![Darko Bandic People hold Chinese and Serbian flags as they wait for arrival Chinese President Xi Jinping and his Serbian counterpart Aleksandar Vucic outside the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)](https://mapi.associatedpress.com/v2/items/d0b8e97f549d4e9c99ca6002739c5468/preview/preview.jpg?s=680x)
People hold Chinese and Serbian flags as they wait for arrival Chinese President Xi Jinping and his Serbian counterpart Aleksandar Vucic outside the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)
![Darko Bandic Chinese President Xi Jinping, left, shakes hands with his Serbian counterpart Aleksandar Vucic greet the crowd at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)](https://mapi.associatedpress.com/v2/items/d466344fc5ad40d39c2eaeaa9d0c042a/preview/preview.jpg?s=680x)
Chinese President Xi Jinping, left, shakes hands with his Serbian counterpart Aleksandar Vucic greet the crowd at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)
![Darko Vojinovic Chinese President Xi Jinping arrives at a press conference after talks with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)](https://mapi.associatedpress.com/v2/items/513010797ebd424dacfcc011840d039d/preview/preview.jpg?s=680x)
Chinese President Xi Jinping arrives at a press conference after talks with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)
![Uncredited In this photo provided by the Serbian Presidential Press Service, Serbian President Aleksandar Vucic, center right, welcomes Chinese President Xi Jinping, center left, and his wife Peng Liyuan during a welcome ceremony upon his arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)](https://mapi.associatedpress.com/v2/items/26364f62a6ab4ead96f0d6cb5162b74d/preview/preview.jpg?s=680x)
In this photo provided by the Serbian Presidential Press Service, Serbian President Aleksandar Vucic, center right, welcomes Chinese President Xi Jinping, center left, and his wife Peng Liyuan during a welcome ceremony upon his arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)
![Darko Vojinovic Serbian President Aleksandar Vucic looks on as documents are exchanged after the signing of an agreement during visit of Chinese President Xi Jinping at the Serbia Palace, in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)](https://mapi.associatedpress.com/v2/items/7a19c18bf3b54886a17e11e2fc6dab70/preview/preview.jpg?s=680x)
Serbian President Aleksandar Vucic looks on as documents are exchanged after the signing of an agreement during visit of Chinese President Xi Jinping at the Serbia Palace, in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)
![Darko Bandic A woman holds the Chinese and Serbian flags as she waits for the arrival of Chinese President Xi Jinping with his Serbian counterpart Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)](https://mapi.associatedpress.com/v2/items/42eb0031d76d46418c277d5fd192647b/preview/preview.jpg?s=680x)
A woman holds the Chinese and Serbian flags as she waits for the arrival of Chinese President Xi Jinping with his Serbian counterpart Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)
![Darko Bandic Chinese President Xi Jinping, centre left, and his Serbian counterpart Aleksandar Vucic, center right, greet the crowd as they arrive at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)](https://mapi.associatedpress.com/v2/items/30e81bf950d54d07a0376853cf166eea/preview/preview.jpg?s=680x)
Chinese President Xi Jinping, centre left, and his Serbian counterpart Aleksandar Vucic, center right, greet the crowd as they arrive at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)
![Darko Vojinovic Chinese President Xi Jinping shakes hands with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)](https://mapi.associatedpress.com/v2/items/972e22239a844521997a0af7d5b269bf/preview/preview.jpg?s=680x)
Chinese President Xi Jinping shakes hands with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)
![Darko Vojinovic Chinese President Xi Jinping speaks during a press conference after talks with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)](https://mapi.associatedpress.com/v2/items/2e34ac80dd1e47a28268d2fb7470215f/preview/preview.jpg?s=680x)
Chinese President Xi Jinping speaks during a press conference after talks with Serbian President Aleksandar Vucic at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)
![Uncredited In this image provided by the Serbian Presidential Press Service, Chinese President Xi Jinping, center, reviews the honor guard with his Serbian counterpart Aleksandar Vucic during a welcome ceremony upon his arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)](https://mapi.associatedpress.com/v2/items/39525142c68e4235b4d5df9a047d614e/preview/preview.jpg?s=680x)
In this image provided by the Serbian Presidential Press Service, Chinese President Xi Jinping, center, reviews the honor guard with his Serbian counterpart Aleksandar Vucic during a welcome ceremony upon his arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)
![Darko Vojinovic Chinese President Xi Jinping, left, with his Serbian counterpart Aleksandar Vucic greets the crowd at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)](https://mapi.associatedpress.com/v2/items/99724ee690f0456ab44a38addd29befe/preview/preview.jpg?s=680x)
Chinese President Xi Jinping, left, with his Serbian counterpart Aleksandar Vucic greets the crowd at the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)
![Uncredited In this photo provided by the Serbian Presidential Press Service, Serbian President Aleksandar Vucic, right, welcomes Chinese President Xi Jinping, center, and his wife Peng Liyuan during a welcome ceremony upon his arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)](https://mapi.associatedpress.com/v2/items/05191812af344ee4b1f0ab0f55943e98/preview/preview.jpg?s=680x)
In this photo provided by the Serbian Presidential Press Service, Serbian President Aleksandar Vucic, right, welcomes Chinese President Xi Jinping, center, and his wife Peng Liyuan during a welcome ceremony upon his arrival at the Nikola Tesla airport in Belgrade, Serbia, Tuesday, May 7, 2024. (Serbian Presidential Press Service via AP)
![Darko Bandic El presidente de China, Xi Jinping, a la izquierda, estrecha la mano del su homólogo serbio, Aleksandar Vucic, en el Palacio de Serbia en Belgrado, el miércoles 8 de mayo de 2024. (AP Foto/Darko Bandic)](https://mapi.associatedpress.com/v2/items/dbeaecac792f4283bfbd64a7cd91ffce/preview/preview.jpg?s=680x)
El presidente de China, Xi Jinping, a la izquierda, estrecha la mano del su homólogo serbio, Aleksandar Vucic, en el Palacio de Serbia en Belgrado, el miércoles 8 de mayo de 2024. (AP Foto/Darko Bandic)
![Darko Vojinovic Chinese President Xi Jinping, left, shakes hands with Serbian President Aleksandar Vucic at the Serbia Palace, in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)](https://mapi.associatedpress.com/v2/items/7edfe309586c477597a8a3cd7396055f/preview/preview.jpg?s=680x)
Chinese President Xi Jinping, left, shakes hands with Serbian President Aleksandar Vucic at the Serbia Palace, in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)
![Darko Vojinovic Chinese President Xi Jinping looks on as documents are exchanged after the signing of an agreement at the Serbia Palace, in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)](https://mapi.associatedpress.com/v2/items/33f2ccb8eaff4c6b875d8fe3b4f48307/preview/preview.jpg?s=680x)
Chinese President Xi Jinping looks on as documents are exchanged after the signing of an agreement at the Serbia Palace, in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Vojinovic)
![Darko Bandic A man waves Chinese and Serbian flags as he waits for the arrival of Chinese President Xi Jinping and his Serbian counterpart Aleksandar Vucic outside the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)](https://mapi.associatedpress.com/v2/items/1881cf2f7d2542258751dbb91ddb8901/preview/preview.jpg?s=680x)
A man waves Chinese and Serbian flags as he waits for the arrival of Chinese President Xi Jinping and his Serbian counterpart Aleksandar Vucic outside the Serbia Palace in Belgrade, Serbia, Wednesday, May 8, 2024. (AP Photo/Darko Bandic)