<SEC-DOCUMENT>0001104659-21-056546-index.html : 20210428
<SEC-HEADER>0001104659-21-056546.hdr.sgml : 20210428
<ACCEPTANCE-DATETIME>20210428160622
ACCESSION NUMBER:		0001104659-21-056546
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20210610
FILED AS OF DATE:		20210428
DATE AS OF CHANGE:		20210428

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HUDSON TECHNOLOGIES INC /NY
		CENTRAL INDEX KEY:			0000925528
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-MACHINERY, EQUIPMENT & SUPPLIES [5080]
		IRS NUMBER:				133641539
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13412
		FILM NUMBER:		21864232

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 1541
		STREET 2:		ONE BLUE HILL PLAZA, 14TH FLOOR
		CITY:			PEARL RIVER
		STATE:			NY
		ZIP:			10965
		BUSINESS PHONE:		8457356000

	MAIL ADDRESS:	
		STREET 1:		PO BOX 1541
		STREET 2:		ONE BLUE HILL PLAZA, 14TH FLOOR
		CITY:			PEARL RIVER
		STATE:			NY
		ZIP:			10965

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	REFRIGERANT RECLAMATION INDUSTRIES INC
		DATE OF NAME CHANGE:	19940617
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>tm2112500-1_def14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: tm2112500-1_def14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>tm2112500d1-proxy_01pagebw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: tm2112500d1-proxy_01pagebw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2112500d1-proxy_02pagebw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2112500d1-proxy_02pagebw.jpg

</DOCUMENT>
</SEC-DOCUMENT>