It is our pleasure to announce that the Best Paper Award of the 19th IEEE International Conference on Industrial Informatics (INDIN 2021). The committee has recognized ex aequo the following three papers:

• "Analysis of Latency and Reliability Improvement with Multi-Link Operation over 802.11". Guillermo Lacalle, Iñaki Val, Oscar Seijo, Mikel Mendicute, Dave Cavalcanti, Javier Perez-Ramirez. Ikerlan Technology Research Centre, Basque Research and Technology Alliance (BRTA), Mondragon Unibertsitatea, Spain. Intel Corporation, USA.
• "Novelty Detection for Iterative Learning of MIMO Fuzzy Systems". Jorge Sampaio Silveira Júnior, Jérôme Mendes, Rui Alexandre Matos Araújo, João Luís Ruivo Carvalho Paulo, Cristiano Premebida. University of Coimbra, Institute of Systems and Robotics, Portugal.
• "Recommendation System using Reinforcement Learning for What-If Simulation in Digital Twin". Flávia Pires, Bilal Ahmad, António Paulo Moreira, Paulo Leitão. Research Centre in Digitalization and Intelligent Robotics (CeDRI), Instituto Politécnico de Bragança, Portugal. INESC TEC - INESC Technology and Science, Faculty of Engineering, University of Porto, Portugal. University of Warwick, Warwick Manufacturing Group (WMG), UK.

The three papers are sound works that cover cutting-edge topics in three different areas; and they are characterized by high novelty and relevance to both scientific audience and industrial practitioners. We would like to congratulate the authors of the three awarded papers.