Question: Type 07 military uniforms were first seen during the transfer of sovereignty from the United Kingdom to which country?

full_context: Document 1: Type 07: Type 07 () is a group of military uniforms used by all branches of the People's Liberation Army (PLA) of the People's Republic of China (PRC). In 2007, the Type 07 uniforms replaced the Type 87 service uniforms used by regular units and the Type 97 Service Dress uniforms of the People's Liberation Army Hong Kong Garrison and the People's Liberation Army Macau Garrison. The Type 07 uniforms were first seen in late June, 2007 during a celebration ceremony for the 10th anniversary of the Transfer of sovereignty over Hong Kong.
Document 2: Type 072III-class landing ship: The Type 072III-class landing ship (NATO designation Yuting-II class) is the follow-on of the Type 072II-class landing ships initially introduced in the 1990s by the People's Republic of China. Type 072-III features a redesigned concealed bridge, and possibly enhanced sealift capability. The main difference between Type 072III and its predecessor Type 072II is that Type 072III incorporates a helicopter platform at stern (no hangar). A total of ten ships have entered service with People's Liberation Army Navy (PLAN), and all of them were built by China Shipbuilding Shipyard (中华造船厂) in Shanghai, Most of Type 072III deployed in PLAN East Sea Fleet (ESF), and the remaining in PLAN North Sea Fleet (NSF) and South Sea Fleet (SSF).
Document 3: Chief Executive of Hong Kong: The Chief Executive of the Hong Kong Special Administrative Region is the head and representative of the Hong Kong Special Administrative Region and head of the Government of Hong Kong. The position was created to replace the Governor of Hong Kong, the representative of the Monarch of the United Kingdom during British rule. The office, stipulated by the Hong Kong Basic Law, formally came into being on 1 July 1997 when the sovereignty of Hong Kong was transferred from the United Kingdom to the People's Republic of China.
Document 4: Yuanlingshan: Yuanlingshan (圓領衫) is a form of traditional Chinese attire. It is a formal attire worn by men. It is also the most common form of attire for (both male and female) officials and nobles during the Ming Dynasty. The difference between civilian's and officials'/nobles' yuanlingshan is that officials'/nobles' yuanlingshan has a mandarin square (補子) on it. The sleeves of the yuanlingshan are mostly curved with a narrow sleeve cuff (琵琶袖, pipa sleeve). It has round collar and side slits. Men's yuanlingshan (regardless of civilian's/officials') have side panels (暗擺) at the side slits to conceal the undergarments. The collar is secured with a button, and a crossed-collar undergarment must be worn. However, yuanlingshan is not worn alone. Underneath the Yuanlingshan is worn the Da Hu (褡護, sleeveless or half sleeve vest with side panels) and the Tie Li (貼裏，men's inner dress, sometimes replaced with the Zhi Shen). According to the Ming's Government letter against Toyotomi Hideyoshi, the Ming Government bestowed on him a set of Chang Fu (常服羅) containing a red yuanlingshan with kirin mandarin square(大紅織金胷背麒麟圓領), dark blue Da Hu (青褡護) , and green Tie Li (綠貼裏).
Document 5: Zhiduo (clothing): Zhiduo (直裰), or Zhishen (直身), or Zhibai (直襬) is the traditional Chinese attire for men. It was worn in the Ming dynasty and was the most popular form of clothing for men. It is a form of casual wear, and is the most common form of attire for men in the Ming Dynasty. It was first worn in Song Dynasty. It is a full-length robe with side slits beginning below the waist, often with side panels (暗擺) at the slits as well to conceal the undergarments. The sleeves are mostly curved with a narrow sleeve cuff (琵琶袖, pipa sleeve). There is often an optional detachable protective huling (護領, lit. "protect collar") sewn to the collar. The huling can be of white or any other dark colours. The collar is of the same colour as the clothing.
Document 6: Transfer of sovereignty over Macau: The transfer of sovereignty of Macau from the Portuguese Republic to the People's Republic of China (PRC) occurred on 20 December 1999. Macau was settled and governed by Portuguese merchants in 1535, during the Ming Dynasty (1368–1644 AD). Portugal's involvement in the region was formally recognized by the Qing in 1749. The Portuguese governor, emboldened by the First Opium War and the Treaty of Nanking, attempted to annex the territory, expelling Qing authorities in 1846, but was assassinated. After the Second Opium War, the Portuguese government, along with a British representative, signed the Sino-Portuguese Treaty of Peking that gave Portugal sovereignty over Macau, on the condition that Portugal would cooperate in efforts to end the smuggling of opium.
Document 7: QSW-06: The QSW-06 () (officially translated in pinyin as "Qiāng Shǒu Wēishēng", literally 'Gun, Pistol, Suppressed') (also sometimes referred to as the Type 06) is a suppressed semi-automatic pistol in limited use with the People's Liberation Army (PLA) and various Chinese police departments. The QSW-06 is based on the QSZ-92 semi-automatic service pistol and is designed to replace the aging QSW-67 silent pistol.
Document 8: PLZ-07: The PLZ-07 or Type 07 is a Chinese 122 mm self-propelled artillery made by the China North Industries Group Corporation (NORINCO). The PLZ-07 self-propelled howitzer was first unveiled to the public during the military parade celebrating 60th anniversary of the PLA on 1 October 2009. The PLZ-07 was developed to replace the older Type 89, Type 85 and Type 70/70-1 122 mm self-propelled artillery systems. The PLZ07 122 mm tracked self-propelled gun mounts a 122 mm gun armed turret on the PLZ45 hull. The vehicle weighs 22.5 tons fully loaded and carries 40 rounds of ammunition. It is 6.66 m long, 3.28 m wide and 2.5 m high to the turret roof. It carries a crew of five and its 440 kW diesel engine gives it a top road speed of 65 km/h and a maximum road range of 500 km.
Document 9: British Forces Overseas Hong Kong: British Forces Overseas Hong Kong comprised the elements of the British Army, Royal Navy (including Royal Marines) and Royal Air Force. Much of the British military left Hong Kong prior to the handover in 1997. The present article focuses mainly on the British garrison in Hong Kong in the post Second World War era. For more information concerning the British garrison during the Second World War see the Battle of Hong Kong.
Document 10: Right of abode in Hong Kong: The right of abode in Hong Kong is the right to legally reside in Hong Kong without any limit or condition of stay being imposed by the Hong Kong Immigration Department. As the People's Republic of China stood to resume sovereignty over Hong Kong from the United Kingdom, the nationality of Hong Kong people as well as their right of abode in the territory was formalised prior to the 1997 handover. Since Hong Kong has never been an independent country, there is no provision for its own citizenship status. Hong Kong Permanent Resident is the legal status for those who have the right of abode in Hong Kong, which is the "de-facto" citizenship status in Hong Kong. Most citizen rights in Hong Kong (such as the right to vote) are granted to all permanent residents, while some (such as the right to hold a HKSAR passport, or becoming a high-rank public officer such as the Chief Executive) are restricted to permanent residents who are also Chinese citizens.
Document 11: Supreme Court (Hong Kong): The Supreme Court of Hong Kong () was the highest court in Hong Kong prior to the transfer of sovereignty of Hong Kong from the United Kingdom to the People's Republic of China in 1997 and heard cases of first instance and appeals from the District and Magisrates Courts as well as certain tribunals. The Supreme Court was made up of the High Court of Justice (High Court) and the Court of Appeal.
Document 12: People's Liberation Army Hong Kong Garrison: The People's Liberation Army Hong Kong Garrison is a garrison of the Chinese People's Liberation Army (PLA), responsible for defense duties in the Hong Kong Special Administrative Region since the sovereignty of Hong Kong was transferred to the PRC in 1997. Prior to the handover, Hong Kong was under British rule, and the defense of Hong Kong was the responsibility of the British Forces Overseas Hong Kong, with auxiliary help from the Royal Hong Kong Regiment.
Document 13: OG-107: The OG-107 was the basic work utility uniform (fatigues) of all branches of the United States Armed Forces from 1952 until its discontinuation in 1989. The designation came from the U.S. Army's coloring code "Olive Green 107" and "Olive Green 507", which were shades of dark green, the OG-107 being cotton and OG-507 polyester-cotton blend introduced in the early 1970s. Regardless of the fabric, the two shades were almost identical. The OG-107 was superseded by the Battle Dress Uniform (BDU) throughout the 1980s, and was also used by several other countries, including ones that received military aid from the United States.
Document 14: Type 97 Service Dress: Type 97 Service Dress was the military uniforms used by all branches of the People's Liberation Army (PLA) in both the People's Liberation Army Hong Kong Garrison and People's Liberation Army Macau Garrison in 1997 and 1999. They are being replaced with the new Type 07 uniforms were unveiled in late June 2007 during the celebration ceremony the 10th anniversary of Transfer of sovereignty over Hong Kong.
Document 15: Transfer of sovereignty over Hong Kong: The transfer of sovereignty over Hong Kong from the United Kingdom to China, referred to as "the Handover" internationally or "the Return" in China, took place on 1 July 1997. The landmark event marked the end of British administration in Hong Kong, and is often regarded as the watershed of the British Empire.
ground_truth: China