In april, 1854, leader of "Sam Ho Hui"[Triads], Chen Kai led a revolt of peasants in Fo Shan of Kwangtung province. When Chen started out on their western expedition from Kwangtung to Kwangsi province, another armed force organized by Li Wen Mou , a former acter of Kwangtung opera, in San Yuan Li of Canton, advanced to join them together. They attacked "Wu Ch'ou" and took the city.

In August, 1855, Chen Kai announced the establishment of the "Ta Cheng Kuo" and proclaimed himself as "Chen Nan Wang" in Sin Ch'ou of Kwangsi province. The Chen's imperial title is "Hung Te". Chen had cast coins too, but I don't know what kind copper cash he had cast. Some source suggested that Chen Kai minted "Hung Te T'ung Pao", but actually "Hung Te" coins were Vietnamese coins.
At the end of 1856, No.2 of "Ta Cheng Kuo", Li Wen Mou proclaimed himself as "P'ing Tsing Wang" and captured Liu Ch'ou . Li cast "P'ing Tsing Sheng Pao" coins and organized opera to celebrate his victory. In May 1858, Li Wen Mou was killed during the breaking of Liu Ch'ou city under the Ching troops onslaught. I think it was why "P'ing Tsing" coins were found few in number.

Another story about the "P'ing Tsing" coins

In 1853, as the great success of the "Taiping Tien Kuo" revolution, the Hsien Feng Emperor found that the "Taiping" rebel had directly influenced the whole country, he orderd to raise the militia force along the Yangtze River districts. Tseng Kuo Fan , a vice-president of the Board of Rite,who detested the Taiping, was ordered to organised the Hunan army. Tseng's army generals were natives of Hunan province. All the solders were recruited by each of the regimental commanders themselves in order to ensure obedience. All the solders were answerable only to his commander and Tseng Kuo Fan. In March 1854, Tseng's troops became the biggest militia force in China, including 17000 solders.

In April 1854, Tseng's troops attacked Yao Ch'ou from Changsha. He was defeated in his attempt to captured the city and even worse, he lost one more city Tsing Chiang . On April 28, as Tseng laid siege to Tsing Chiang, his navy met the Taiping strong bombardment and the tow ropes of his boats were cut by the special squad of Taiping troops. At the same time, Tseng's army was also lost on land. He erected a banner which read: Those who go past this banner will be executed". But, it did not help, his solders went on to flee and passed the banner with a detour. Tseng felt shame at failing in the battle. He jumped into the water and saved by his attendents. As Taiping force was too weak in Hunan, Tseng got a chance to rebuilt his troops and captured Yao Ch'ou at the same year. "Taiping Tien Kuo" cast the "P'ing Tsing Sheng Pao" coins for commemoration to mark the victory in Tsing Chiang.