diff --git a/lineage_notes.txt b/lineage_notes.txt
index 61b21c11..9b24ce84 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -2822,6 +2822,7 @@ EG.3	Alias of XBB.1.9.2.3, ORF1a:L2778F on N:L219F branch
 EG.4	Alias of XBB.1.9.2.4, C28651T
 EG.5	Alias of XBB.1.9.2.5, S:F456L (T22930A), ORF1a:A690V, ORF1a:A3143V, Indonesia
 EG.5.1	Alias of XBB.1.9.2.5.1, S:Q52H, China
+EG.5.1.1	Alias of XBB.1.9.2.5.1.1, found mainly in China, from pango-designation issue #2020
 EG.5.2	Alias of XBB.1.9.2.5.2, N:L161F
 EG.6	Alias of XBB.1.9.2.6, C1684T, Israel
 EG.6.1	Alias of XBB.1.9.2.6.1, S:456L (T22928C), Israel/Japan/Canada
diff --git a/lineages.csv b/lineages.csv
index c5b300e1..2adb1536 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2425213,3 +2425213,71 @@ Canada/AB-ABPHL-98530/2023,FL.4.3
 Canada/AB-ABPHL-97457/2023,FL.4.3
 Shanghai/SCDC-HG0524-1146/2023,FL.4.3
 Shanghai/SCDC-HG0524-1145/2023,FL.4.3
+Guangdong/GDCDC_SZ_0291/2023,EG.5.1.1
+Shanghai/SCDC-HG0508-564/2023,EG.5.1.1
+Singapore/R32MR49/2023,EG.5.1.1
+Hubei/HCDC-1028/2023,EG.5.1.1
+Hubei/HCDC-1198/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0298/2023,EG.5.1.1
+Shanghai/SCDC-XG04-3066/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4108/2023,EG.5.1.1
+USA/CA-GBW-H10-013-5243/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0293/2023,EG.5.1.1
+Hubei/HCDC-1119/2023,EG.5.1.1
+Hubei/HCDC-1168/2023,EG.5.1.1
+Hubei/HCDC-SY1475/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4103/2023,EG.5.1.1
+Shanxi/JCCDC-JCCX230183/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4105/2023,EG.5.1.1
+Hubei/HCDC-JZ1381/2023,EG.5.1.1
+Hubei/HCDC-Y1296/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0558/2023,EG.5.1.1
+Yunnan/YNCDC-0529/2023,EG.5.1.1
+USA/CA-GBW-H20-312-1490/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0303/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0299/2023,EG.5.1.1
+Sichuan/ZGCDC-XGZG175/2023,EG.5.1.1
+Sichuan/DYCDC-029/2023,EG.5.1.1
+Canada/ON-PHL-23-23623/2023,EG.5.1.1
+Hubei/HCDC-EN1490/2023,EG.5.1.1
+Shanxi/JCCDC-JCCX0145/2023,EG.5.1.1
+Shanghai/SCDC-HG0508-563/2023,EG.5.1.1
+Sichuan/CDCDC-19-CX1400/2023,EG.5.1.1
+Sichuan/YACDC-XGCX051/2023,EG.5.1.1
+Guangdong/GDCDC_FS_0046/2023,EG.5.1.1
+Shanxi/SZCDC-011/2023,EG.5.1.1
+Heilongjiang/HLJCDC-1122/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4135/2023,EG.5.1.1
+Shanghai/SCDC-XG04-3201/2023,EG.5.1.1
+Sichuan/LZCDC-53YYX/2023,EG.5.1.1
+Anhui/LACDC-060/2023,EG.5.1.1
+Hubei/HCDC-1179/2023,EG.5.1.1
+Hubei/HCDC-EN1480/2023,EG.5.1.1
+Shanghai/SCDC-XG04-3033_4/2023,EG.5.1.1
+Anhui/LACDC-059/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0430/2023,EG.5.1.1
+Sichuan/ZYSCDC-ZY0926/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0302/2023,EG.5.1.1
+Guangdong/GDCDC_HZ_0024/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4136/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4117/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0292/2023,EG.5.1.1
+Hubei/HCDC-JM1411/2023,EG.5.1.1
+Shanghai/SCDC-XG04-3147/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0294/2023,EG.5.1.1
+Hubei/HCDC-JZ-1566/2023,EG.5.1.1
+Shanghai/SCDC-XG05-3867/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0355/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0300/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0301/2023,EG.5.1.1
+Hubei/HCDC-XT1244/2023,EG.5.1.1
+Sichuan/DYCDC-025/2023,EG.5.1.1
+Sichuan/DYCDC-028/2023,EG.5.1.1
+Guangdong/GDCDC_MM_0063/2023,EG.5.1.1
+Hubei/HCDC-EZ1282/2023,EG.5.1.1
+Shanghai/SCDC-XG05-4132/2023,EG.5.1.1
+Sichuan/CDCDC-19-CX1176/2023,EG.5.1.1
+Yunnan/YNCDC-0477/2023,EG.5.1.1
+Guangdong/GDCDC_SZ_0304/2023,EG.5.1.1
+Yunnan/YNCDC-0528/2023,EG.5.1.1
+Yunnan/YNCDC-0511/2023,EG.5.1.1