diff --git a/science/Makefile b/science/Makefile
index 84d70d679553..9468c16b376e 100644
--- a/science/Makefile
+++ b/science/Makefile
@@ -68,6 +68,7 @@
     SUBDIR += kalzium
     SUBDIR += kst2
     SUBDIR += lamprop
+    SUBDIR += libaec
     SUBDIR += libctl
     SUBDIR += libghemical
     SUBDIR += libint
diff --git a/science/libaec/Makefile b/science/libaec/Makefile
new file mode 100644
index 000000000000..ee84a8224364
--- /dev/null
+++ b/science/libaec/Makefile
@@ -0,0 +1,26 @@
+# Created by: Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	libaec
+PORTVERSION=	1.0.0
+CATEGORIES=	science
+MASTER_SITES=	https://gitlab.dkrz.de/k202009/libaec/repository/archive.tar.bz2?ref=v${PORTVERSION}&dummy=/ \
+		LOCAL/sunpoet
+
+MAINTAINER=	sunpoet@FreeBSD.org
+COMMENT=	Adaptive entropy coding library
+
+LICENSE=	BSD2CLAUSE
+LICENSE_FILE=	${WRKSRC}/COPYING
+
+CONFLICTS_INSTALL=	hdf-szip-
+
+GNU_CONFIGURE=	yes
+INSTALL_TARGET=	install-strip
+USE_LDCONFIG=	yes
+USES=		autoreconf libtool tar:bz2
+
+GL_TAGNAME=	351b61ebdfd2a3c02c7227df4a13d106d79418f8
+WRKSRC=		${WRKDIR}/${PORTNAME}-v${PORTVERSION}-${GL_TAGNAME}
+
+.include <bsd.port.mk>
diff --git a/science/libaec/distinfo b/science/libaec/distinfo
new file mode 100644
index 000000000000..39874ffa4c0f
--- /dev/null
+++ b/science/libaec/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1483205683
+SHA256 (libaec-1.0.0.tar.bz2) = 9b4e1bc2f1d531b9b0f7dbb49caaa5e6e6119c50d412bf8cb49be60ae25289b5
+SIZE (libaec-1.0.0.tar.bz2) = 776442
diff --git a/science/libaec/pkg-descr b/science/libaec/pkg-descr
new file mode 100644
index 000000000000..a06d40384bef
--- /dev/null
+++ b/science/libaec/pkg-descr
@@ -0,0 +1,17 @@
+Libaec provides fast lossless compression of 1 up to 32 bit wide signed or
+unsigned integers (samples). The library achieves best results for low entropy
+data as often encountered in space imaging instrument data or numerical model
+output from weather or climate simulations. While floating point representations
+are not directly supported, they can also be efficiently coded by grouping
+exponents and mantissa.
+
+Libaec implements Golomb-Rice coding as defined in the Space Data System
+Standard documents 121.0-B-2 and 120.0-G-2.
+
+Libaec includes a free drop-in replacement for the SZIP library. Just replace
+SZIP's shared library libsz.so* with libaec.so* and libsz.so* from libaec. Code
+which is dynamically linked with SZIP such as HDF5 should continue to work with
+libaec. No re-compilation required. HDF5 files which contain SZIP encoded data
+can be decoded by HDF5 using libaec and vice versa.
+
+WWW: https://gitlab.dkrz.de/k202009/libaec
diff --git a/science/libaec/pkg-plist b/science/libaec/pkg-plist
new file mode 100644
index 000000000000..5997eb12d284
--- /dev/null
+++ b/science/libaec/pkg-plist
@@ -0,0 +1,11 @@
+bin/aec
+include/libaec.h
+include/szlib.h
+lib/libaec.a
+lib/libaec.so
+lib/libaec.so.0
+lib/libaec.so.0.0.6
+lib/libsz.a
+lib/libsz.so
+lib/libsz.so.2
+lib/libsz.so.2.0.1
diff --git a/science/szip/Makefile b/science/szip/Makefile
index 79971d7ee0b7..5aa06afe7881 100644
--- a/science/szip/Makefile
+++ b/science/szip/Makefile
@@ -16,6 +16,8 @@ EXTRACT_ONLY=	${DISTNAME}${EXTRACT_SUFX}
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Lossless compression library for scientific data
 
+CONFLICTS_INSTALL=	libaec-
+
 OPTIONS_DEFINE=	DOCS
 
 GNU_CONFIGURE=	yes