EBITDA primarily reflects the revenue discussed above, partially offset by the increase in cost of sales resulting from higher power generation cost, security and maintenance costs of $3.4 million, $3.0 million and $1.7 million respectively, due to the increase in asset base and an increase in administrative expenses of $2.9 million, of which $2.3 million are staff costs.
Latam
Revenue for our Latam segment increased by $23.8 million, or 118.8%, to $43.9 million for the fourth quarter of 2022, compared to $20.1 million for the fourth quarter of 2021. Revenue increased organically by $6.3 million, or 31.6%, driven primarily by an increase in growth from fiber, escalations, New Sites and new Colocation. Revenue for our Latam segment also grew inorganically in the period by $16.0 million, or 79.7%, due primarily to the impact of the GTS SP5 and I-Systems Acquisitions. Revenue also increased by $1.5 million, or 7.4%, as a result of favorable movements by the non-core impact of positive movements in foreign exchange rates. Year on year, within our Latam segment, Tenants increased by 3,820, including 252 from New Sites and 2,998 from the GTS SP5 Acquisition in the first quarter of 2022.
Segment Adjusted EBITDA for our Latam segment was $31.4 million for the fourth quarter of 2022 compared to $13.5 million for the fourth quarter of 2021, an increase of $17.9 million, or 132.0%. The increase in Segment Adjusted EBITDA primarily reflects the revenue discussed above, partially offset by an increase in cost of sales of $2.5 million, as a result of an increase in tower repairs and maintenance and site rental due to an increase in the asset base year on year, and an increase in administrative expenses of $3.4 million, of which $3.4 million are staff costs.
MENA
Revenue for our MENA segment increased by $1.3 million, or 16.1%, to $9.5 million for the fourth quarter of 2022, compared to $8.2 million for the fourth quarter of 2021. Revenue increased organically by $1.2 million, or 15.1%, and grew inorganically in the period by $0.3 million, or 3.3%. Year on year, within our MENA segment, Tenants increased by 130, including 86 from New Sites, and 43 from the closings of the fifth stage of the Kuwait Acquisition in the third quarter of 2022.
Segment Adjusted EBITDA for our MENA segment was $4.4 million for the fourth quarter of 2022 compared to $3.7 million for the fourth quarter of 2021, an increase of $0.7 million, or 19.6%. The increase in Segment Adjusted EBITDA primarily reflects the revenue discussed above, partially offset by an increase in cost of sales of $0.2 million and an increase in administrative expenses of $0.4 million, of which $0.4 million are staff costs.
Results for the twelve months ended December 31, 2022 versus 2021
During the twelve months ended December 31, 2022, revenue was $1,961.3 million compared to $1,579.7 million for the twelve months ended December 31, 2021, an increase of $381.6 million, or 24.2%. Organic growth was $307.4 million, or 19.5%, driven primarily by escalations, power indexation, Lease Amendments, foreign exchange resets and new Colocation, as well as fiber and New Sites. During the twelve months ended December 31, 2022, non-recurring revenue of $18.0 million was recognized from reaching agreement on certain contractual terms with a Key Customer in Nigeria and for the twelve months ended December 31, 2021 non-recurring revenue of $24.2 million was recognized. Aggregate inorganic revenue was $151.5 million, or 9.6%, for the twelve-month period ended December 31, 2022, driven by the MTN South Africa Acquisition, GTS SP5 Acquisition, I-Systems Acquisition and fifth stage of the Kuwait Acquisition. The increase in the period was partially offset by the non-core impact of negative movements in foreign exchange rates of $77.3 million, or 4.9%.
Adjusted EBITDA was $1,031.4 million for the twelve months ended December 31, 2022 compared to $926.4 million for the twelve months ended December 31, 2021. Adjusted EBITDA margin for the twelve months ended December 31, 2022, was 52.6% (twelve months ended December 31, 2021: 58.6%). The increase in Adjusted EBITDA primarily reflects the increase in revenue discussed above, partially offset by an increase in cost of sales resulting from higher diesel costs in 2022 largely due to the current situation between Russia and Ukraine, the non-recurring revenue in 2021 as well as an additional non-recurring $36.5 million net reversal of loss allowance in trade receivables, an increase in maintenance and repair costs alongside an increase in administrative expenses associated with being a public company and acquisitions listed above.
Loss for the period was $470.4 million for the twelve months ended December 31, 2022 compared to loss of $26.1 million for the twelve months ended December 31, 2021. The loss for the year reflects the impact of an increase in net finance costs mainly due to an increase in realized and unrealized foreign exchange losses on financing, an increase in interest expense and the fair value loss on embedded options within the bonds due to the rise in treasury rates since the end of