Below are the full text of the two documents.

Vietnam rejects as completely unfounded, in fact and in law, China’s assertions in the annexes to the letters dated 22 May 2014 and 09 June 2014 from the Chargé d’affaires a.i. of the Permanent Mission of China to the United Nations addressed to the Secretary-General of the United Nations as contained in documents A/68/887 and A/68/907 respectively.

Vietnam reiterates the following:

1/ China’s activities, in violation of international law, escalate tension in the East Sea (South China Sea)

It is first of all necessary to state that the sovereignty dispute over the Hoang Sa archipelago has long existed. Yet, this dispute is not the cause of the on-going escalating tension in the East Sea, which is to be addressed by applying the rules and procedures provided for in the 1982 United Nations Convention on the Law of the Sea (UNCLOS).

The current tension is caused by China's illegal placement of Haiyang Shiyou 981 oil rig within the exclusive economic zone and continental shelf of Viet Nam, over which Viet Nam is entitled to the rights of a coastal State in accordance with UNCLOS.

On 02 May 2014, China moved the Haiyang Shiyou 981 oil rig into the East Sea to conduct exploratory drilling and placed it at 15-29.58N/111-12.06E.

On 27 May 2014, the rig was moved to the location of 15-33.38N/111-34.62E.

Both of these locations lie deep inside the exclusive economic zone and continental shelf of Viet Nam, approximately 130-150 nautical miles off the Vietnamese coast.

China’s activities infringe upon Viet Nam’s sovereign rights and jurisdiction under UNCLOS and violate the high-level agreements between the two countries on non-aggravation and non-complication of the situation in the East Sea.

Viet Nam has consistently and resolutely protested against China’s activities that violate Viet Nam’s sovereign rights and jurisdiction over its exclusive economic zone and continental shelf.

Since 2005, Chinese ships, on a number of occasions, have intruded into the exclusive economic zone and continental shelf of Viet Nam and conducted 2D and 3D seismic surveys in areas near the current locations of Haiyang Shiyou 981 oil rig. In response to such intrusions, Viet Nam has sent civilian law enforcement vessels to the area in order to give warning to and to demand those Chinese ships to stop their illegal activities.

At the same time, through the diplomatic channel, Viet Nam has engaged in repeated communications with and sent Notes Verbales to China, resolutely protesting against China’s wrongful acts, including a series of communications between Viet Nam’s Deputy Foreign Ministers and China’s Ambassadors in Ha Noi.

On 5 August 2010 and 8 August 2011, the Spokesperson of Viet Nam Ministry of Foreign Affairs publicly protested and requested China to immediately cease and to desist from repeating the violations of Viet Nam’s sovereign rights and jurisdiction in the East Sea.

Since 2 May 2014, Viet Nam has sent Notes Verbales and communicated with the Chinese authorities at various levels more than 30 times to protest against China’s deploying of the oil rig and dispatching of escort vessels inside Viet Nam's maritime zones, acts which infringe on Viet Nam’s sovereign rights and jurisdiction. In these communications, Viet Nam has time and again demanded that China withdraw its oil rig and vessels from Vietnamese waters.

To abet the illegal operation of Haiyang Shiyou 981 oil rig, China has deployed over 100 escort vessels, including military ships, in Viet Nam's maritime zones.

China's coast guard ships have intentionally rammed Viet Nam's civilian law enforcement vessels.

Numerous videos and photographs taken by international reporters on the scene at the invitation of Viet Nam vividly demonstrate China’s violent and aggressive conduct, such as ramming into and firing water-cannon at Vietnamese vessels, causing injuries to dozens of officers and damages to vessels of Viet Nam’s civilian law enforcement agencies, and on 26 May 2014 ramming and sinking one Vietnamese fishing boat in total disregard for the safety and life of Vietnamese fishermen.

These activities by China have not only violated the prohibition against the threat or use of force under international law but also constituted inhumane conduct against fellow seafarers.

2/ Viet Nam’s efforts and goodwill to settle the current tension through dialogue and other peaceful means have been repeatedly rejected by China

Since the very beginning of the current tension in early May 2014, Viet Nam has made every effort to communicate and conduct dialogue with China under various forms and at various levels to demand that China immediately stop all infringements of Viet Nam’s sovereign rights and jurisdiction and withdraw its oil rig and vessels from Vietnam’s maritime zones with a view to creating favorable conditions for a prompt opening of discussions between the two countries on measures to stabilize the situation and to manage maritime issues between the two countries, pursuant to the United Nations Charter, the relevant provisions of UNCLOS, the Declaration on the Conduct of Parties in the South China Sea and other agreements between the two countries.

Viet Nam has made more than 30 diplomatic communications with relevant Chinese authorities, the latest being the meeting between Deputy Prime Minister and Foreign Minister of Viet Nam, H.E. Mr. Pham Binh Minh, and State Councilor of China, H.E. Mr. Yang Jiechi, in Ha Noi on 18 June 2014. But China, to date, has consistently refused to withdraw Haiyang Shiyou 981 oil rig; nor has it entered into substantive negotiations on the legality of China’s actions.    

China must respect Viet Nam’s rights as enshrined under UNCLOS. Once again, Viet Nam demands that China comply with international law and, to this end, immediately stop all infringements of Viet Nam’s sovereign rights and jurisdiction. In particular, Viet Nam demands that China withdraw Haiyang Shiyou 981 oil rig, all ships and other related vehicles and equipment from Viet Nam’s waters and desist from intruding in Viet Nam’s waters in the future.

Viet Nam solemnly requests China to resolve all disputes through peaceful means in conformity with international law, including UNCLOS, to avoid the prolongation of tension, and to refrain from actions that may trigger conflicts between the two countries.

The sovereignty of Vietnam over the Hoang Sa Archipelago

Viet Nam also rejects as completely unfounded, in fact and in law, China’s sovereignty claims over the Hoang Sa archipelago (which China calls “the Xisha islands”, also known as the Paracel Islands) in the annexes to the letters dated 22 May 2014 and 09 June 2014 from the Chargé d’affaires a.i. of the Permanent Mission of the People’s Republic of China to the United Nations addressed to the Secretary-General of the United Nations as contained in documents A/68/887 and  A/68/907 respectively. Viet Nam affirms that the Chinese claims have no legal or historical foundation.

Historical documents are not in accord with China’s claims of sovereignty over the Hoang Sa archipelago (Paracel Islands)

China has, in its recent communications, referred to some documents as historical evidence to assert the so-called “sovereignty” of China over the Hoang Sa archipelago of Viet Nam.

However, these “documents” cannot be authenticated, lack accuracy and have been interpreted by China in an arbitrary fashion.

The documents referred to by China do not by any means prove that China established sovereignty over the Hoang Sa archipelago when this territory was terra nullius. Historical records, by contrast, show that China understood that its sovereignty did not extend to the Hoang Sa archipelago.

For example, in the last decade of the 19th century when the ships Bellona and UmejiMaru sank in the Hoang Sa archipelago and were looted by Chinese fishermen, the Chinese authorities of Guangdong Province of China argued that the Hoang Sa archipelago was abandoned islands which did not belong to China.

The archipelago neither was administratively attached to any district of Hainan of China nor fell under the responsibility of any Chinese authority. China, on these grounds, refused to take responsibility for the incident.

In contrast, Viet Nam has publicly provided authentic historical materials proving that Viet Nam established its sovereignty over the Hoang Sa archipelago when the islands were terra nullius.

Since at least the 17th century, the Nguyen dynasties of Viet Nam organized activities to exploit resources on islands of the Hoang Sa archipelago, undertook maritime measurements and recorded navigation routes to ensure the safety of navigation by foreign vessels through the waters of Hoang Sa archipelago.

These activities were well recorded in official documents issued by the Vietnamese dynasties, which are still archived in Viet Nam.

After France and Viet Nam had signed the Protectorate Treaties of 15 March 1874 and 06 June 1884 respectively, France, on behalf of Viet Nam, continuously exercised Viet Nam’s sovereignty over the Hoang Sa archipelago and protested against China’s infringements.

France conducted many activities to exercise sovereignty over the Hoang Sa archipelago, including building and operating lighthouses and meteorological stations, establishing administrative delegations responsible for the archipelago attached to Thua Thien province (Annam), and granting birth certificates to Vietnamese citizens born in the archipelago. In 1909, the exploratory mission conducted by Commander Li Zhun of Guangdong of China violated the sovereignty well established by Viet Nam over the Hoang Sa archipelago and effectively exercised by France on behalf of Viet Nam.

France, on behalf of Viet Nam, protested against China’s intrusions upon the Hoang Sa archipelago and reaffirmed that sovereignty over the Hoang Sa archipelago was well established by Viet Nam.

In response to China's claims over the Hoang Sa archipelago, France requested China to resolve the issue by international arbitration (French Note Verbal dated 18 February 1937 addressed to China), but China refused.

In 1946, the Republic of China under Chiang Kai-shek, taking advantage of the situation at the end of the Second World War, illegally intruded upon Phu Lam (Woody) Island of the Hoang Sa archipelago. In 1947, France protested against this illegal intrusion and requested that the two parties negotiate and settle the issue through third party adjudication, which the Republic of China again refused.

The Chiang Kai-shek regime later withdrew from Woody Island.

International conferences did not transfer the Hoang Sa archipelago to China

Before and after the end of the Second World War, the issue of sovereignty over the Hoang Sa archipelago was put on the agenda of a number of international conferences.

The Cairo Conference held between 22 - 26 November 1943, with the attendance of U.S. President Franklin D. Roosevelt, British Prime Minister Winston Churchill and Republic of China President Chiang Kai-shek, adopted the Cairo Communiqué aimed at eliminating Japanese administration over all Asia-Pacific islands seized by Japan since the First World War in 1914 and returning to China Chinese territories under Japanese occupation, including Manju, Taiwan and Penghu. Chiang Kai-shek who represented China at the Conference said nothing about the Hoang Sa and Truong Sa archipelagoes.

The Potsdam Conference from 17 July to 2 August 1945 with the attendance of the leaders of the U.S., Great Britain and China issued the Potsdam Declaration reaffirming the Cairo Communiqué. Chiang Kai-shek, the representative of China at the Conference, again made no mention whatsoever of the Hoang Sa and Truong Sa archipelagoes.

The San Francisco Peace Conference on 4 - 8 September 1951 was attended by representatives of 51 countries, including Viet Nam as a member of the French Union. The Prime Minister of the State of Viet Nam Tran Van Huu participated in the conference as Head of the Vietnamese Delegation.

The Conference addressed the issue of devolution of a number of territories in the Asia Pacific region. At the Conference, the Head of Delegation of the Soviet Union, Mr. Andrei A. Gromyko, put forwards a proposal on behalf of China containing 13 items, among which was Japan's recognition of the sovereignty of the People's Republic of China over some islands in the East Sea (South China Sea), including the Hoang Sa archipelago. With 46 votes against, 3 votes in favour and 2 abstentions, the Conference rejected the proposal by the Delegation of the Soviet Union.

Immediately after that vote, on 7 September 1951, addressing the Conference, the Head of the Vietnamese Delegation Mr. Tran Van Huu reaffirmed Viet Nam's long standing sovereignty over the Hoang Sa and Truong Sa archipelagoes.

None of the 51 participating countries protested against that confirmation by the Vietnamese Delegation of Viet Nam’s sovereignty over these archipelagoes.

The Geneva Conference in 1954 on the restoration of peace in Indochina stated that the parties concerned would respect the independence and territorial integrity of Viet Nam, which included the Hoang Sa and Truong Sa archipelagoes then under the administration of French and Vietnamese forces.

Having been a participant at the Geneva Conference, China is well aware of this fact and must respect the international instruments adopted at the Conference.

Article 1 of the Paris Agreement in 1973 clearly stated that all countries must respect the independence and territorial integrity of Viet Nam. At that time, the Hoang Sa and Truong Sa archipelagoes were under the administration of the Republic of Viet Nam and constituted an integral part of Vietnamese territory.

In January 1974, China used military force to occupy the entire Hoang Sa archipelago. The Governments of the Republic of Viet Nam and the Provisional Revolutionary Government of South Viet Nam issued statements to express their position and protest against China's action.

The Government of the Republic of Viet Nam requested the United Nations Security Council to hold an urgent meeting on China's use of force. Under the international law of territorial acquisition, the use of force to occupy a territory cannot create territorial title.

China violated the principle of refraining from the threat or use of force under international law and therefore could not establish sovereignty over the Hoang Sa archipelago

China illegally invaded the Hoang Sa archipelago twice. Taking advantage of the withdrawal of France from Viet Nam, in 1956 China invaded and occupied the eastern part of the Hoang Sa archipelago. This was the first ever standing occupation of China anywhere in the Hoang Sa archipelago which elicited strong protests from the Republic of Viet Nam.

In 1959, an attempt to land on the western part of the archipelago made by Chinese soldiers disguised as fishermen was smashed by the forces of the Republic of Viet Nam.

Eighty-two Chinese "fishermen" were captured. Both these invasions occurred after the sovereignty of Viet Nam over the Hoang Sa and Truong Sa archipelagoes had been reaffirmed, without any protest, at the above-mentioned international conferences.

In 1974, taking advantage of the war in Viet Nam, China attacked and seized control over the Hoang Sa archipelago from the Government of the Republic of Viet Nam. This was the first time ever that China obtained full occupation of the Hoang Sa archipelago by force.

Under international law, the use of force to occupy the territory of another sovereign state is null and void and can never be the basis for a claim of sovereignty. Viet Nam’s sovereignty over the Hoang Sa archipelago therefore continues and is not displaced by China’s occupation by force.

The Memorandum of China on 12 May 1988, an official document of the Chinese Ministry of Foreign Affairs, also clearly asserted the principle of international law that "aggression cannot award sovereignty" over a territory. No country in the world recognizes China as sovereign over the Hoang Sa archipelago.

Viet Nam has never recognized China’s sovereignty over the Hoang Sa archipelago

China has deliberately distorted and misinterpreted history when it refers to the letter signed by late Prime Minister Pham Van Dong in 1958 and other materials and publications published in Viet Nam before 1975 in attempts to support its claims over the Hoang Sa archipelago.

The letter made no mention at all of sovereignty over the Hoang Sa and Truong Sa archipelagoes.

The letter concerned maritime entitlements, not territorial issues. In fact, the conclusions that China would draw today from the letter are contradicted by China's own statements, including statement by Chinese Leader Deng Xiao Ping himself.

In September 1975, 17 years after the release of the letter by the late Prime Minister Pham Van Dong, Chinese Leader Deng Xiao Ping told Vietnamese Leader Le Duan in Beijing that "China has sufficient materials to prove that the Xisha islands (Hoang Sa) and Nansha islands (Truong Sa) have been part of China's territory since long ago.

However, in line with the principle of friendly consultation to resolve differences, the two countries will discuss with each other to address this issue later".

Deng Xiao Ping’s statement was well noted in China’s Ministry of Foreign Affairs Memorandum dated 12 May 1988 and reflects China’s understanding that sovereignty was not settled in favour of China by any previous statement or agreement.

Viet Nam requests that China respect this historical fact and seriously engage in negotiations with Viet Nam in respect of the Hoang Sa archipelago.