Question: within which ancient kingdom located in present-day Eritrea is Aksumite currency used 
Context: The history of Chinese currency spans more than 3000 years.  Currency of some type has been used in China since the Neolithic age which can be traced back to between 3000 and 4500 years ago.  Cowry shells are believed to have been the earliest form of currency used in Central China, and were used during the Neolithic period. Wazena (mid-6th century) was a King of the Kingdom of Aksum.  He is primarily known through the Aksumite currency that was minted during his reign.  Without any clear discussion, Munro-Hay identifies him with a king Alla Amidas, who is also known only through the coins he issued. Gersem (c. 600) was a King of the Kingdom of Aksum in Northeast Africa.  He is primarily known through the Aksumite currency that was minted during his reign. The Kingdom of Aksum (also known as the Kingdom of Axum, or the Aksumite Empire) was an ancient kingdom located in present-day Eritrea and the Tigray Region of Ethiopia.  Ruled by the Aksumites, it existed from approximately 100 AD to 940 AD.  The polity was centered in the city of Axum.  It grew from the proto-Aksumite Iron Age period around the 4th century BC to achieve prominence by the 1st century AD, and became a major player on the commercial route between the Roman Empire and Ancient India.  The Aksumite rulers facilitated trade by minting their own Aksumite currency, with the state establishing its hegemony over the declining Kingdom of Kush.  It also regularly entered the politics of the kingdoms on the Arabian Peninsula, and eventually extended its rule over the region with the conquest of the Himyarite Kingdom.  The Persian Prophet Mani (died 274 AD) regarded Axum as one of the four great powers of his time, alongside Persia, Rome, and China. Endubis (c. 270 – c. 300) was a King of the Kingdom of Aksum in East Africa modern day Ethiopia and Eritrea.  He was among the earliest rulers in the Horn region to mint coins.  This Aksumite currency was issued in gold and silver denominations. Aksumite currency was coinage produced and used within the Kingdom of Aksum (or Axum) centered in present-day Eritrea and the Tigray Region of Ethiopia.  It was issued and circulated from the reign of King Endubis around AD 270 until it began its decline in the first half of the 7th century.  During the succeeding medieval period, Mogadishu currency, minted by the Sultanate of Mogadishu, was the most widely circulated currency in the Horn of Africa. Dʿmt (South Arabian alphabet: 𐩩𐩣𐩲𐩵 ; Unvocalized <a href="Ge%27ez">Ge'ez</a>: ደዐመተ, "DʿMT" theoretically vocalized as ዳዓማት "Daʿamat" or ዳዕማት Daʿəmat) was a <a href="monarchy">kingdom</a> located in <a href="Eritrea">Eritrea</a> and northern <a href="Ethiopia">Ethiopia</a> that existed during the 10th to 5th centuries BC.  Few inscriptions by or about this kingdom survive and very little archaeological work has taken place.  As a result, it is not known whether Dʿmt ended as a civilization before Aksum's early stages, evolved into the Aksumite state, or was one of the smaller states united in the Aksumite kingdom possibly around the beginning of the 1st century. The moving average rate procedure is a proven procedure within development cooperation to convert locally used currency of the projects (voucher currency) to the currency used at the head office (company currency). Fictional currency is the currency used in works of fiction.  It may be used in alternative worlds, eras, or realities.  The use of "credits" is particularly common in futuristic settings, so much so that Sam Humphries has pointed it out as a cliché: "In any science-fiction movie, anywhere in the galaxy, currency is referred to as 'credits.'"  Credits are frequently envisioned as a form of electronic money. An alternative currency (or private currency) is any currency used as an alternative to the dominant national or multinational currency systems.  They are created by an individual, corporation, or organization, they can be created by national, state, or local governments, or they can arise naturally as people begin to use a certain commodity as a currency.  Mutual credit is a form of alternative currency, and thus any form of lending that does not go through the banking system can be considered a form of alternative currency.
Answer: Kingdom of Aksum